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Issuer Summary: PTT Global Chemical

Issuer: Ptt Global Chemical | Document: Issuer Summary | Date: 2026-05-02

1. Credit View and Monitoring Focus

PTT Global Chemical Public Company Limited (PTTGC; hereafter GC) is the chemical flagship of Thailand’s state-affiliated energy major PTT Group, and is an integrated petrochemical company with a strong domestic position in feedstocks, infrastructure, customer base, and capital market access. The credit foundation is based on its strategic relationship with PTT, access to gas-based feedstocks, integrated assets spanning Refinery to Olefins, Polymers, and Specialty, and ratings that still remain investment grade. GC should therefore be viewed not simply as a high-beta independent commodity chemical issuer, but as a core Thai petrochemical credit with national infrastructure characteristics.

That said, this does not mean the credit can be assessed leniently. For FY2025, GC reported sales revenue of THB 487,585 million and a net loss of THB 14,600 million. Although this was an improvement from the THB 29,811 million loss in 2024, margins remain low: EBITDA to sales revenue was 3.78%, ROE was -5.29%, and Net interest-bearing debt / EBITDA remained at 8.68x in 2025. Even though the company maintains investment-grade ratings, earnings stability is not strong, and leverage improvement can be slow when the external environment is weak.

Accordingly, the most natural characterization of GC’s credit is a cyclical IG chemical credit that has a strong business platform but is heavily influenced by the industry downcycle. The fact that GC was able to issue USD 1.1 billion of subordinated perpetual securities and THB 10 billion of subordinated hybrid bonds in 2025, and that it has set out an asset-light and deleveraging direction, are clear positives. However, these do not fully substitute for fundamental improvement in cash generation. The current view is that this is not an issuer facing imminent credit deterioration, but it remains one whose ability to stabilize its financial profile even without an industry recovery is still being tested.

For bond investors, the key is not to view GC as a materials-equity-like credit to be traded on short-term quarterly profit and loss, but to assess how a large petrochemical company that forms part of a national supply network can withstand a deep deterioration in market conditions. Its relationship with PTT, its core domestic role in Thailand, and its access to funding markets are reasons why GC is unlikely to fall easily into credit distress. On the other hand, the rapid thinning of earnings in weak operating years, and the finite room to rely on hybrids and asset rotation, distinguish it from defensive utilities and infrastructure credits even within IG. The current conclusion is therefore that credit is preserved, but the source of comfort lies more in structural support than in earnings strength.

The monitoring points implied by this view are also clear. First, whether margins in the commodity chain bottom in 2026. Second, how far allnex and the low-carbon portfolio can mitigate volatility in group-wide profit and loss. Third, whether deleveraging proceeds with improved operating cash flow rather than dependence on hybrids. Fourth, whether the JV review with SCGC becomes a realistic improvement measure for the restructuring of Thailand’s petrochemical sector. Depending on how these four points progress, GC’s credit story will divide between a case in which it stabilizes at the lower end of IG and a case in which the Negative outlook becomes realized.

2. Business Snapshot: What is PTT Global Chemical?

GC is a Thai-listed integrated petrochemical company whose largest shareholder is PTT Public Company Limited. According to the Shareholder Structure, PTT’s ownership was 45.18% as of October 9, 2025, and GC is positioned as the core company responsible for chemical operations within the PTT Group. This relationship is not an explicit guarantee, but it functions as credit support through feedstock procurement, business collaboration, capital market confidence, and policy proximity.

According to the company’s disclosed Business Structure, GC has total chemical and petrochemical capacity of approximately 14.34 million tons per year, and crude and condensate distillation capacity of 280,000 barrels per day. The important point is that it is neither a single polymer company nor a single refinery company, but an integrated company that includes Refinery and Shared Facilities, Aromatics, Olefins, Polymers, EO-Based Performance, Green Chemicals, Phenol, and overseas Specialty businesses. Because by-products and intermediate feedstocks from the Refinery flow into aromatics and olefins, and then into polymers and performance materials, GC has greater room for feedstock flexibility and by-product optimization than a standalone plant.

According to Business Units and Capacity, GC is broadly involved in Thailand’s basic petrochemical chain. In olefins, it covers ethylene, propylene, butadiene, and 1-butene; in polymers, it covers HDPE, LDPE, LLDPE, PP, PET, PS, and other products; and it is also involved in Phenol, EO-based products, Oleochemicals, and Bioplastics. In other words, GC’s profit and loss are determined not by a single product spread, but by a combination of multiple petrochemical chains and supply-demand balances. Conversely, when the overall industry is weak, GC can face simultaneous pressure across a broad range of businesses.

In addition, a distinctive feature of GC is that it owns overseas specialty / low-carbon assets. Business Units and Capacity and Subsidiaries and Affiliates show assets such as allnex, Vencorex, and NatureWorks. Allnex is a global platform in coating resins, NatureWorks is a PLA-based biomaterials platform, and Vencorex is one part of the specialty chemicals portfolio. This means GC is not purely dependent on commodities, but at present these businesses do not appear to have reached a scale or level of stability sufficient to detach group-wide profit and loss from the commodity cycle.

The important point here is both GC’s “integration” and “diversification.” Integration means that GC can link feedstocks, intermediates, and resins in Thailand and secure operational optimization and flexibility in feedstock allocation. Diversification means that it owns not only domestic commodities, but also businesses with different demand characteristics, such as specialty, coating resins, bioplastics, and oleochemicals. From a credit analysis perspective, the combination of these two is GC’s most important characteristic. The least misleading way to understand the company is that individual businesses are volatile, but the overall portfolio is being designed to create resilience.

However, the breadth of this portfolio does not immediately mean profit stability. GC still has a very large commodity asset base, and margin volatility generated there drives group-wide earnings. Specialty and low-carbon are directionally appropriate, but what investors should assess at this point is not the future vision itself, but how much these businesses affect current profit and loss and leverage. Therefore, at the Business Snapshot stage, it is reasonable to characterize the company as a large materials company based on Thailand’s integrated petrochemical infrastructure and pursuing a transition toward high value - low carbon.

3. What Changed Recently

GC’s recent changes can be organized into three areas: first, improvement in FY2025 results; second, hybrid funding to strengthen the capital structure; and third, progress on portfolio restructuring and JV review.

According to FY2025 audited financials and the 2026 AGM minutes, GC’s 2025 results were sales revenue of THB 487,585 million, net loss of THB 14,600 million, total assets of THB 606,373 million, liabilities of THB 310,603 million, and equity of THB 295,770 million. This was a substantial improvement from the THB 29,811 million loss in 2024, and the company appears to be recovering from the worst phase. However, it is important that this remains a stage of narrowing losses rather than a return to profitability, and profitability metrics are still weak.

Management messaging during 2025 consistently focused on Holistic Optimization, Asset Light, Portfolio Transformation, and Deleveraging. The Q1/2025 release in May 2025 indicated that the efficiency target had been raised from THB 4.5 billion to THB 5.5 billion per year. The January 13, 2026 year-opening summary release also emphasized competitiveness improvement through 3 Smarts, Plant-wide Optimization, use of AI, cost reduction, and more advanced sales and pricing strategies. In other words, GC is not simply waiting for an economic recovery; it is pursuing self-help measures centered on costs and asset turnover.

In terms of capital structure, 2025 was an important year. According to the company release dated January 13, 2026, GC issued its first USD-denominated subordinated perpetual securities of USD 1.1 billion in 2025, and in December 2025 it also publicly issued THB 10 billion of new subordinated hybrid bonds. The Debenture Information page also confirms the THB 10 billion perpetual issued on December 4, 2025 (PTTGC25PA), following the THB 17 billion perpetual in 2024. This is clearly an equity-content supplement that uses market access, and is positive for credit.

In addition, materials related to the November 2025 Extraordinary General Meeting show that restructuring involving asset monetization, including the sale of shares in Thai Tank Terminal Company Limited, is underway. This indicates that GC is shifting from a management approach that retains assets to one that prioritizes balance sheet efficiency. More than the absolute amount of cash inflow, the management stance itself—that non-core / infrastructure-type assets can be moved if necessary—is positive from a credit standpoint.

This point is important but can be overlooked in credit evaluation of materials companies. In an economic downturn, issuers can be divided into three types: 1) companies that only wait for a market recovery, 2) companies that rely only on cost reductions, and 3) companies that move the asset composition, funding structure, and business portfolio. GC is clearly in the third category, pursuing asset sales, hybrids, JV review, and operational optimization simultaneously. This does not immediately imply a large credit improvement, but it does confirm that management is not passive and is highly conscious of rating defense and capital efficiency.

Furthermore, on April 29, 2026, a SET announcement and external reporting indicated that GC and SCGC had signed a non-binding MOU to explore the possibility of forming a strategic JV for Thailand’s olefins and polyolefins businesses. The evaluation is scheduled to be completed in Q3/2026, and the two companies will continue operating independently until then. This is potentially an upside factor linked to supply chain preservation, integration efficiency, utilization improvement, and restructuring of Thailand’s petrochemical sector. However, actual terms, regulatory approvals, and economic rationale remain undecided, and for now it is appropriate to view this as a positive but unconfirmed structural option.

Finally, as a timing confirmation, Q1/2026 results had not yet been disclosed as of May 2, 2026. The IR page shows that Opportunity Day Q1/2026 is scheduled for May 26, 2026, making that the next key update point. Therefore, the latest actual results basis of this report is FY2025, and quantitative updates for Q1/2026 have not yet been incorporated.

This fact—that Q1/2026 had not yet been announced—is itself meaningful for investors. The current view relies on the improvement trend in FY2025 and the financial measures taken during 2025, while the extent to which supply-demand conditions in early 2026 will be reflected has not yet been confirmed. In other words, GC’s credit view rests on a recovery hypothesis and confirmed facts around defensive measures, but it has not yet been proven that the company has truly entered an improvement trajectory in 2026. Recognizing this gap is important in initial coverage.

4. Industry Position and Franchise Strength

GC’s franchise strength first lies in its core role in Thailand’s petrochemical value chain. Owning Refinery, Aromatics, Olefins, and Polymers within the same group, and being able to operate feedstocks, by-products, logistics, and utilities on an integrated basis, is a clear competitive advantage even among Asian petrochemical companies. Strengths and Strategies also lists Strategic Relationship with PTT, Competitive Cost Structure, and Fully Integrated and Diversified Product Portfolio at the top.

The relationship with PTT is particularly important. According to GC’s own description, PTT is Thailand’s main natural gas supplier and supplies gas feedstock to GC through long-term contracts. This relationship works through multiple channels: feedstock stability, cost competitiveness, credit credibility, and connection to the customer base. Therefore, when assessing GC’s credit, it is necessary to incorporate not only standalone earnings capacity, but also its position within the PTT ecosystem.

Another strength is feedstock flexibility. GC’s olefins facilities are characterized by their ability to use a wide range of feedstocks, including ethane, propane, LPG, and naphtha, and this flexibility was also emphasized in the April 2026 release on the restart of OLE 4. Looking forward, a company release indicated that GC entered into a U.S. ethane import contract during 2025, with receipt scheduled to start in 2029. This is a step toward improving long-term cost competitiveness and strengthening feedstock security for Thailand’s domestic petrochemical sector.

However, franchise strength does not directly translate into short-term earnings strength. The current global petrochemical market is affected by capacity additions in China and the Middle East, slow demand recovery, low utilization rates, and weak spreads, making it difficult to secure sufficient margins through cost advantages and integrated operations alone. In other words, GC is not struggling because it is a bad company; it is in a situation where industry headwinds are too strong even for a company with a good position. This is quite important for credit assessment, and the currently weak margins should not be explained solely by company-specific execution issues.

Furthermore, GC’s franchise is strong domestically in Thailand, but it is not a top-tier global low-cost player. Compared with Middle Eastern ethane advantages, U.S. shale advantages, and China’s policy-driven supply expansion, GC competes through integration and feedstock flexibility rather than absolute cost leadership. This means that in good markets it can capture earnings opportunities across a broad chain, while in downturns it cannot fully avoid industry-wide overcapacity pressure. Therefore, GC’s franchise strength is real, but its main effect is resilience against failure rather than the ability to remain highly profitable at all times.

At the same time, having high-value-added and low-carbon areas such as allnex, NatureWorks, and Green Chemicals is positive relative to pure commodity peers. These could support GC’s High Value - Low Carbon transition over the long term. At present, however, the profit and loss impact of basic chemicals remains dominant, and it is difficult to say that specialty sufficiently absorbs group-wide volatility. The current franchise assessment is therefore a balance: strong domestically in Thailand, a rational long-term strategy, but current earnings are still governed by the commodity cycle.

The credit implication of this section is that GC is not a company whose rating is close to the lower end because its franchise is weak. Rather, its franchise is sufficiently strong, but weak industry conditions and thin earnings cap the rating. This distinction matters. If the franchise were weak, the probability of the recovery story itself would be low; but GC has room for improvement if market conditions normalize and self-help measures take effect. On the other hand, if improvement is delayed, franchise strength alone has limits as a rating defense. This is precisely the difficulty of GC’s credit story.

For this reason, in peer comparison, it is risky to view GC simply through whether spreads are wide or tight. The more appropriate approach is to position it along two axes: how strategically important it is and how large earnings volatility is. GC is strong on the former and also high on the latter. This means it is less likely to be completely abandoned even in bad years, but it is also difficult to feel the same comfort as with defensive credits even in good years. This asymmetry is central to understanding GC as an investor.

5. Segment Assessment

In assessing GC’s segments, it is useful to separate Refinery / Aromatics / Olefins / Polymers from Specialty / Green / Low-Carbon.

First is the basic chemicals chain. Refinery and Shared Facilities is not so much a standalone high-earning growth engine within GC’s earnings as it is the foundation that makes the entire petrochemical chain work. The integrated operation in which light naphtha and various by-products from the Refinery flow into Aromatics and Olefins is a major strength of GC. At the same time, when petrochemical spreads are weak, optimization of the entire integrated asset base becomes defensive management.

Aromatics, Olefins, and Polymers are the core of GC’s commodity earnings, but they are also the largest current credit issue. These businesses are, in principle, where GC monetizes its scale, feedstock flexibility, and high degree of integration. In the current environment, however, earnings are vulnerable to being eroded by oversupply and pricing pressure in Asian markets. In particular, olefins and polyolefins tend to become assets that are difficult to stop but hard to make profitable in weak markets, precisely because GC is important as a core part of Thailand’s domestic supply network. The April 2026 restart of OLE 4 is positive operationally, but what matters fundamentally for credit is whether the restarted capacity translates into cash conversion at sufficient margins.

Downstream businesses below Polymers have relatively higher defensiveness because demand is broader and applications are more diverse than for upstream assets alone. Even so, major resins such as PE, PP, and PET remain heavily affected by market cycles. They are influenced not only by domestic Thai demand but also by the export environment, so it is not possible to say that the business is stable simply because GC is a domestic leader. Rather, GC’s strength lies in the fact that its broad grades and applications, integrated logistics, and customer interface give it room for operational optimization rather than making it a complete price taker.

In contrast, Specialty Chemicals centered on allnex are core assets for GC’s move away from being a commodity company. Allnex has global industrial coating resins and has earnings characteristics different from GC’s domestic commodity businesses in terms of product differentiation, customer intimacy, regional diversification, and accumulated technology. It is not completely free from economic cycles, but its quality is higher than simple petrochemical spread-linked earnings. However, investors should not be overly optimistic here. The presence of specialty is an element that improves the quality of group-wide earnings, but it is not yet an element that turns the whole group into a specialty company.

NatureWorks and Green Chemicals also have high long-term strategic value. The large-scale financing for the NatureWorks Thailand PLA project in 2024 showed that external funding sources place some value on this strategy. However, these are not the main cash engines supporting GC’s short-term credit today. At this stage, they are seeds of future differentiation, not assets that immediately reduce current leverage.

The positioning of EO-based products, Phenol, and Performance Chemicals should also not be overlooked in credit analysis. These have broader applications than upstream commodities and involve a higher degree of customer specification and processing, so in theory their margin floors should be somewhat less exposed. However, based on GC’s disclosures, these do not currently appear to have enough weight to decisively soften group-wide volatility. Therefore, in segment analysis, it would be wrong to simplify everything as commodity, but it is also premature to conclude that GC has sufficiently transitioned into specialty.

What this structure implies for bondholders is that GC’s improvement scenario is not linear. Only when basic chemical spreads improve, specialty earnings remain stable, capital efficiency improves through asset rotation, and low-carbon areas are developed over the medium to long term will group-wide credit metrics improve materially. Any single one of these is not enough. Put differently, GC’s segment structure offers many upside options, but realizing improvement requires multiple conditions, which means the degree of confidence in the assessment is not yet high.

In conclusion, the segment-level credit assessment is that specialty and low-carbon are beginning to mitigate commodity headwinds, but the group’s center of gravity still remains in basic chemicals. Improvement will require not only increased profit contribution from specialty, but also a bottoming in spreads and utilization on the basic chemicals side.

6. Financial Profile

GC’s financial profile can be summarized in one phrase as past the worst phase, but not yet comfortably strong. In 2025, the loss narrowed versus 2024, and equity recovered from THB 268,593 million to THB 295,770 million. Liabilities also declined from THB 377,251 million to THB 310,603 million. This indicates that financial measures, including hybrid funding, asset rotation, and working capital and investment management, had some effect.

On the other hand, margins remain weak. Performance Highlights show that in 2025 EBITDA to sales revenue was 3.78%, ROA was -1.15%, ROE was -5.29%, and Net profit to sales revenue was -3.01%. This is not the profile of a typical high-profitability chemical company, but the numbers of a company shoring up defenses during an economic downturn. Reducing dependence on interest-bearing debt in the absence of earnings requires a combination of operating recovery, investment restraint, asset sales, and equity-like funding.

Leverage metrics are also less reassuring than they appear. Interest-bearing debt / equity was 0.61x and Net interest-bearing debt / equity was 0.54x, both improved from 2024. However, Net interest-bearing debt / EBITDA was 8.68x, meaning that while balance sheet ratios have improved, earnings-flow ratios remain heavy. This captures GC’s essential financial issue well. Current financial improvement relies not simply on an earnings rebound, but heavily on equity-like funding and balance sheet measures.

There is no major immediate liquidity concern, but the quality of cash generation still requires attention. The Q1/2025 release indicated operating cash flow of more than THB 12 billion and cash holdings of more than THB 37 billion. The fact that GC maintained market access after the second half of 2025 and successfully issued USD / THB hybrids is evidence that investor and bank confidence remains. However, this does not mean there is no credit risk; it means the funding market remains open.

A particularly important point in the financial assessment is not to judge GC too heavily on single-year net income. The improvement in 2025 from the large 2024 loss does not mean through-the-cycle earnings power has fully recovered. Conversely, the leverage improvement in 2025 does not mean there is no problem if the industry downturn persists. GC’s credit story depends on whether the three-part set of profit and loss recovery + deleveraging + maintenance of capital market access works simultaneously.

It is also important to interpret the balance sheet changes from 2024 to 2025. The increase in equity and decline in liabilities look reassuring if viewed only numerically. But when the sources of improvement are broken down, the effects likely include equity-like funding, portfolio restructuring, and asset rotation, not just net profit generation. This is not negative, but it is somewhat different from a balance sheet that has naturally improved through recovery in the core business alone. Therefore, the key point from 2026 onward is not whether balance sheet improvement continues, but how far that continuation can be supported by operating profit and operating cash flow.

GC’s financial profile is also affected by capex discipline and working capital management. Integrated petrochemical companies can see cash shrink before profit and loss have fully recovered if they reaccelerate investment in anticipation of a market recovery. The credit significance of GC’s asset-light stance is not simply whether assets can be sold, but whether the company maintains a posture of prioritizing balance sheet defense even when pursuing growth or transition investments. If this posture remains intact, IG defense capacity strengthens; if it breaks down, rating pressure can intensify quickly.

Reframing the 2025 numbers in a credit context, GC can be described as having still-weak profit and loss, but quite disciplined financial behavior. This is positive, but what investors most want to avoid is becoming comfortable in the short term because disciplined financial management continues, while overlooking delays in core business recovery. For a materials credit like GC, financial management quality and improvement in business earnings power need to be observed separately. 2025 was a year of progress in the former, while the latter remains halfway through the process.

In addition, GC is a typical example where accounting recovery and credit recovery do not coincide. The narrowing of the net loss and the recovery in equity are clear progress, but what bond investors should focus on more is the refinancing capacity of ordinary corporate bonds and the sustainable reduction of leverage. Even if accounting metrics improve, credit headroom does not become sufficiently thick unless there is a real recovery in commodity margins. Therefore, from 2026 onward, analysis should confirm not only the magnitude of profit and loss improvement, but also how that improvement translates into credit metrics.

7. Structural Considerations for Bondholders

The structural considerations for GC’s bondholders are, first, its position within the PTT Group; second, the diversity of issuer and funding instruments; and third, the complexity of its capital structure, including hybrids.

First, GC is a 45.18%-owned subsidiary of PTT and has a strong strategic relationship in business terms. However, this does not mean that the credit should be assessed on the assumption of full and unconditional support from PTT. The relationship with PTT is important as support through feedstock, business, and confidence, but it is not a legal guarantee itself. Therefore, while parentage should be incorporated as a credit enhancement, the ultimate assessment still needs to focus on GC’s own cash generation and refinancing ability.

Next is diversity of funding instruments. GC uses domestic public bonds, offshore bonds, and hybrid bonds, and the 2026 AGM minutes refer to the total debenture issuance ceiling and outstanding amounts. This is a strength in terms of market access, but it also means the company is sensitive to market sentiment and rating changes. GC is more flexible than a company dependent only on bank borrowing, but because it needs ongoing capital market funding, spread widening or changes in investor demand can easily feed through into credit.

Third is the positioning of hybrids. The perpetual subordinated debentures issued in 2024 and 2025 are effective as capital supplements for accounting and rating purposes, and in fact have contributed to GC’s equity and leverage improvement. However, hybrids are not a substitute for operating profit. Rather, from a bondholder perspective, they should be read as the company using equity-like funding subordinated to ordinary corporate bonds to supplement financial resilience. This is positive, but it is also the other side of insufficient normal-period earnings recovery.

The implication for ordinary corporate bond investors is that a thicker hybrid layer is itself one form of senior bond protection. At the same time, it also means the company is proactively building financial thickness while it can rely on capital markets. This is proactive and can be assessed positively, but it also suggests that if market access narrows in the future, the room to repeat the same measures will be limited. Therefore, the existence of hybrids is not a one-directional source of comfort for senior bonds. It has two sides: defensive measures are working for now, but structurally the core business still needs to improve.

8. Capital Structure, Liquidity and Funding

Capital structure and liquidity are among the most important areas in GC’s credit. The appropriate current assessment is that near-term liquidity is manageable, but long-term comfort depends on an improvement in business conditions.

On the positive side, GC was able to execute multiple capital measures throughout 2025. The USD 1.1 billion subordinated perpetual, the THB 10 billion subordinated hybrid bond, asset monetization, and cash preservation through efficiency measures were all actions aimed at securing liquidity and deleveraging. The January 2026 company release also presented these measures as ways to strengthen financial resilience. The fact that GC maintained this degree of capital market access in a difficult market environment is itself an important credit strength.

In addition, the Current Ratio at end-2025 was 1.19x. Although slightly down from 1.37x in 2024, it was not at a level implying immediate breakdown in short-term funding. Total liabilities also decreased, and equity recovered. In other words, at least as of end-2025, the balance sheet was being reorganized within a reduced-equilibrium framework.

However, this does not mean liquidity is rock-solid. A Current Ratio of 1.19x is not a thick cushion for a cyclical materials company, and the safety margin narrows if operating conditions worsen, working capital deteriorates, and large investments reaccelerate. In addition, the Net interest-bearing debt / EBITDA figure of 8.68x shows that repayment capacity viewed against earnings flow remains heavy. Therefore, visible balance sheet improvement should be distinguished from being sufficiently strong on endogenous cash generation alone.

The presence of hybrid bonds has two-sided implications for ordinary corporate bond investors. The fact that equity-like funding subordinated to ordinary corporate bonds is thicker is positive for senior bonds. On the other hand, the fact that the company is mobilizing that much equity-like funding reflects the severity of industry conditions. It is closer to reality to understand GC not as a materials company with a conservative balance sheet, but as an issuer using capital policy within the investment-grade space to supplement resilience.

A positive point on funding is that GC has access to both Thailand’s domestic investor base and overseas markets. The fact that it could place perpetual instruments in the domestic public bond market and also issue USD subordinated perpetuals offshore means its investor base is not one-dimensional. This is important as refinancing flexibility, and makes GC stronger than a company with only one funding channel in the same weak industry environment. However, in an environment where the Negative outlook continues, this flexibility is not a fixed right, but a variable factor with high credit sensitivity. If markets worsen, issuance may still be possible, but costs would become heavier and flow back into credit.

Furthermore, the 2026 AGM minutes confirm that a large total debenture issuance ceiling has been set, but the important point is less “whether there is a ceiling” than “on what terms the market can actually be used.” Funding analysis should separate legal issuance capacity, unused commitments, liquidity on hand, bond market access, and bank support capacity. For a large materials company like GC, it is particularly important not to confuse the ability to issue with the ability to issue on reasonable terms.

The capital structure should be read as showing that GC is not a company at risk simply because of the absolute amount of debt, but a company where the debt burden becomes conspicuous when earnings are weak. This distinction is important. If the issue were merely the size of debt outstanding, a certain explanation could be made as a large company with integrated petrochemical and refining infrastructure. The problem is that the EBITDA supporting that debt is heavily affected by market conditions, and cash flow coverage can narrow quickly in weak years. Therefore, what bondholders should assess is not simply debt stock, but how much funding flexibility can be maintained in weak economic conditions, and whether refinancing confidence can be sustained even in years of weak EBITDA.

From this perspective, GC’s liquidity assessment cannot be based only on the level of cash and deposits. It is necessary to continuously monitor whether its connection to funding markets is maintained. For a large materials company, liquidity is not only a static balance, but also dynamic access capacity.

Therefore, GC’s capital structure assessment should consider three factors simultaneously: current cash, currently usable markets, and future refinancing needs. The conclusion should not be based on only one of these.

At present, GC has relatively preserved the first two of these three elements, but the third—core business recovery sufficient to make future refinancing easier—is still being confirmed.

This point will be the dividing line for future credit assessment.

2026 should be the year when that answer gradually begins to emerge.

Therefore, the next quarterly update is highly important.

The market will look there.

In that sense, GC is now in a transition phase.

The assessment is not yet fixed.

9. Rating Agency View

As of May 2, 2026, GC’s main ratings shown on the IR page were Baa3 from Moody’s, BBB- from S&P, BBB- from Fitch Ratings, and AA- (th) from Fitch Ratings (Thailand), all with Negative Outlook. The 2026 AGM minutes also explain that these ratings are investment grade.

The meaning of this combination is clear. First, GC remains within investment grade, supported by its strategic relationship with PTT, its core domestic role in Thailand, its asset base, and its capital market access. Second, the fact that all outlooks are Negative means the rating agencies are maintaining the current ratings but are more strongly focused on downside risk than improvement. This concisely captures the current credit story.

There are probably three factors behind the rating assessment. The first is that GC remains a large and strategically important integrated petrochemical company. The second is that earnings and leverage are heavily affected by materials market conditions, and stability is not high. The third is that management is implementing concrete rating-defense measures such as hybrid issuance and deleveraging. For investors, the important point is not simply that the ratings are IG, but the fact that Negative outlooks are aligned at the lower end of IG.

Taking the rating meaning one step further, GC is not a company viewed as likely to fall immediately into speculative grade, but it is also not viewed as a company that will naturally return to stability without further action. Multiple Negative outlooks reflect the fact that the current industry environment, leverage, and weak margins are being viewed not as temporary noise, but as themes that affect the overall credit profile. In this respect, the rating agency view is consistent with the basic assessment of this report.

10. Credit Positioning

GC’s credit positioning combines the comfort associated with an Asian state-affiliated energy and petrochemical group with the earnings volatility of global commodity chemicals. It is not a defensive IG credit like a bank, infrastructure, or utility, but neither is it an independent high-beta chemical issuer with weak support characteristics. It sits between the two.

GC’s strengths are its core role in Thailand’s supply chain, its relationship with PTT, its broad integration capability, investment-grade ratings, and market access. These are reasons why the company is unlikely to fall immediately into credit distress even when profit and loss deteriorate. On the other hand, GC’s weaknesses are that current profit and loss depend heavily on the commodity cycle, and specialty / green businesses are not yet thick enough to become a stable group-wide earnings base. Therefore, even with the same BBB-/Baa3 ratings, it is difficult to place GC in the same category as more stable utilities or pipelines.

In this sense, GC’s credit can be described as a Thai strategic IG with cyclical earnings pressure. Investors should not become overly comfortable simply because of its PTT Group affiliation, nor should they become overly pessimistic simply because of the 2024-2025 losses. The focus should be on how far the company can absorb industry headwinds through capital policy and business restructuring.

In relative terms, GC can be viewed in the same frame as defensive IG when spreads tighten, but in reality its earnings characteristics are not that defensive. This is a point that is easily overlooked when market conditions are favorable. GC’s appeal lies in its franchise and strategic linkage, not in stable margins themselves. Conversely, in pessimistic phases it may be grouped together with large loss-making petrochemical companies, but even then its relationship with PTT, core domestic supply-chain role, and remaining access to funding markets are often stronger than those of independent high-beta chemical issuers. In practical credit positioning, this intermediate character is precisely GC’s defining feature.

In practice, GC is not a credit where the decision of whether it can be held should be based only on economic sensitivity. If held, the more important question is what needs to be monitored. It is not a type of credit that can be left alone like a stable utility bond, but neither is it a credit that involves betting on distressed recovery. Credit views need to be updated relatively frequently, and it is preferable to monitor quarterly results, funding terms, rating outlooks, and progress on portfolio restructuring as a set.

11. Key Credit Strengths and Constraints

GC’s main strengths are, first, its strategic relationship with PTT; second, integrated petrochemical assets in Thailand; third, feedstock flexibility; fourth, investment-grade ratings and capital market access; and fifth, long-term transition potential toward specialty / low-carbon. Each of these is a credit factor that has a longer effect than simple quarterly profit and loss, and they are also the reasons why GC continues to maintain IG ratings.

The constraints are clear. First, earnings are still heavily affected by the commodity downcycle. Second, profitability remains weak even after the narrowing of losses in 2025. Third, Net interest-bearing debt / EBITDA remains heavy, making it difficult to reduce leverage quickly through endogenous cash generation alone. Fourth, as shown by the aligned Negative outlooks, rating defense headroom is not unlimited. Fifth, while JV review and asset rotation are future improvement options, they also involve execution uncertainty.

Therefore, GC’s credit quality can be explained by the asymmetry that the foundation is strong, but current earnings power is still weak. Looking only at the strengths creates comfort; looking only at the weaknesses highlights downside pressure. What matters is recognizing that both are true at the same time.

This asymmetry also directly affects investment decisions. To view GC positively, one needs to value the PTT relationship, capital market access, integrated assets, and restructuring potential. To view it cautiously, one needs to emphasize low EBITDA margin, Negative outlook, reinforcement through hybrid dependence, and uncertainty in commodity recovery. Only when both are placed side by side can GC be understood as an issuer with resilience under stress, but still thin comfortable credit headroom.

12. Downside Scenarios and Monitoring Triggers

The most important downside is a prolonged weakness in petrochemical spreads. If recovery in olefins, polyolefins, and aromatics margins remains delayed from 2026 onward and Adjusted EBITDA does not improve, GC may be able to narrow accounting losses but is likely to see slow improvement in Net debt / EBITDA. In that case, the Negative outlook could lead to a downgrade, gradually affecting capital market access and issuance spreads.

The second downside is a prolonged stabilization phase dependent on capital policy. Hybrid issuance and asset sales are effective, but these are not measures that can be repeated indefinitely. If the phase of buying time through balance sheet optimization alone continues without earnings recovery, investors’ views will become more severe. For senior bond investors, the larger problem is not the increase in hybrids itself, but a situation in which EBITDA still does not recover despite these measures.

Third is uncertainty around JV restructuring. The non-binding MOU with SCGC is a potential upside factor in terms of restructuring Thailand’s petrochemical sector. Depending on the terms, however, it could also create new uncertainties around execution delays, regulatory review, integration work, asset valuation, and ownership design. At present, it should be treated as a positive-direction option, but should not be brought forward as a high-certainty credit improvement factor.

Monitoring items should prioritize: 1) trends in Adjusted EBITDA and net loss from Q1/2026 onward, 2) Net interest-bearing debt / EBITDA and cash balance, 3) access to the ordinary corporate bond market excluding hybrids, 4) profit contribution from allnex and the green platform, 5) formal progress on the JV review, and 6) changes in outlook.

The sequence of the deterioration scenario should also be kept in mind. The most typical path is: continued weak spreads -> delayed EBITDA recovery -> leverage remains elevated -> rating outlook deterioration or downgrade -> higher funding costs -> reduced financial flexibility. For a large materials company like GC, asset scale and liquidity on hand can provide support in the first few quarters, but if industry weakness is prolonged, it eventually transmits to funding cost and capital structure. Understanding this transmission path makes it easier to interpret quarterly results.

Conversely, in an improvement scenario, bottoming of the commodity chain + stable specialty contribution + continued capital policy + progress on JV and asset rotation need to overlap. In other words, a slight improvement in market conditions alone is not enough. In GC’s case, investors should confirm both earnings recovery and balance sheet improvement at the same time. From a practical standpoint, it is better to focus 2026 monitoring not simply on whether the company returns to profitability, but on whether EBITDA and net debt are improving in a way that matters for credit.

In that sense, GC’s monitoring triggers can be narrowed to four. First, even if quarterly Adjusted EBITDA improves, whether that improvement is not offset by working capital or one-off factors. Second, whether leverage is improving on a basis excluding hybrids and asset sales. Third, whether terms for ordinary bonds and bank funding are being maintained. Fourth, whether JV and portfolio transformation connect not merely to the story, but to actual capital efficiency and earnings resilience. If these move positively, GC’s credit will head toward stabilization. If any of them breaks down, the weight of the Negative outlook will increase quickly.

Restating the conclusion for initial coverage, GC is an issuer whose current safety is supported by the PTT relationship and capital market access, while future improvement depends on commodity recovery and portfolio transformation. Therefore, there are two misunderstandings investors should most avoid. First, assuming automatic comfort because of the PTT Group affiliation. Second, oversimplifying the credit as a high-risk chemical credit based only on the 2024-2025 losses. In reality, it sits between these two views. Structural support is substantial, but earnings support is not yet sufficiently thick. Tracking GC on the basis of this intermediate character is the most important point in credit monitoring.

13. Short Summary & Conclusion

PTT Global Chemical is an integrated petrochemical and refining company 45.18%-owned by PTT and positioned within Thailand’s strategic chemical value chain. It is an investment-grade credit supported by its link with PTT, domestic role, asset base, market access, and options such as hybrids and asset sales. On the other hand, weak commodity margins, losses, high net debt/EBITDA, and Negative outlooks are pressure points. The direction will stabilize if spread recovery, leverage reduction, and improved cash generation through portfolio and JV measures become visible. Investors should view GC not as a defensive utility credit, but as a cyclical petrochemical issuer with strategic support value, and should monitor the prolongation of the downcycle, the effectiveness of hybrid and asset measures, downgrades, and funding cost pressure.

14. Sources

Main primary sources referenced:

Unconfirmed or lower-resolution issues: