Bangkok – 5^th November 2025 – PTT Global Chemical Public Company Limited (GC), a global leader in the chemical business and the chemical flagship of PTT Group, has officially announced the interest rate for its Thai Baht-Subordinated Hybrid Debentures with issuer’s right to early redemption (“Subordinated Hybrid Debentures”) at 4.40% per annum for the first 5 years and 6 months. The public offering is expected to take place during 27– 28 November and 1 – 3 December 2025, through 12 financial institutions.

Amid ongoing global economic uncertainties and a downward trend in interest rates since early 2025, GC believes that its Subordinated Hybrid Debentures presents an attractive investment alternative for those seeking long-term predictable returns. Offering higher yields than deposits and ordinary debentures, this issuance represents a strategic move to strengthen GC’s capital structure, support sustainable growth, and advance its High Value–Low Carbon business development. This initiative further reinforces GC’s position as a global chemical industry leader. Additionally, GC intends to offer this bond issuance as a New Year gift to retail investors.

The interest rate for the Subordinated Hybrid Debentures is set at 4.40% per annum for the first 5 years and 6 months. The subscription period is expected to be during 27– 28 November and 1– 3 December 2025. Investors may subscribe through 12 financial institutions, both at branches and via online platforms. Subscription during the weekends is available at some financial institutions, as specified in the Offering section of GC's draft prospectus.

Mr. Thitipong Jurapornsiridee, Executive Vice President - Finance and Accounting at GC, stated that “This issuance not only represents part of our capital management and deleveraging program, but also a significant step toward enhancing GC’s financial strength in preparation for our long-term growth. It supports our strategic direction in developing high-value, low-carbon businesses.”

GC was assigned a notional long-term credit rating of AA- (tha) with a “Stable” outlook from Fitch Ratings (Thailand) on 8 April 2025. At the same time, GC’s Subordinated Hybrid Debentures received a credit rating of A (tha) on 7 July 2025; the highest credit rating for this type of instrument in Thailand, reflecting GC’s financial stability and investor confidence. This Subordinated Hybrid Debentures will be accounted for 100% equity in accounting and will receive 50% equity credit from all GC’s credit rating agencies.

Mr. Thitipong further added that “This issuance helps enhance GC’s capital structure flexibility, positioning us to stand ready to seize new opportunities when the activities in petrochemical industry turn around. Together GC continues to execute its deleveraging strategy through asset monetization to improve liquidity and asset management efficiency. This issuance also plays a vital role in maintaining our credit rating, aligning with GC’s capital structure management plan to support future sustainable growth.”

For this issuance, retail investors can subscribe with a minimum amount of 100,000 Baht and additional multiples of 100,000 Baht. The subscription period is during 27-28 November and 1-3 December 2025, through 12 financial institutions acting as the joint lead arrangers, including Bangkok Bank, CIMB Thai Bank, KASIKORNBANK, Krung Thai Bank, Siam Commercial Bank, Kiatnakin Phatra Securities, Asia Plus Securities, Bank of Ayudhya, Krungthai XSpring Securities, Maybank Securities (Thailand), TMBThanachart, and Yuanta Securities (Thailand). Online subscriptions during the weekends are available at some arrangers.

Currently, GC is in the process of filing the registration statement and the draft prospectus to the Securities and Exchange Commission, which are not yet effective. For more information, please contact the following 12 arrangers:

• Bangkok Bank Public Company Limited, at all branches (except Micro Branches), or call 1333, or subscribe online via Bangkok Bank Mobile Banking application (for individuals only).
• CIMB Thai Bank Public Company Limited, at all branches, or call 02-626-7777,
• KASIKORNBANK Public Company Limited (Retail investors can subscribe via online channel (https://www.kasikornbank.com/kmyinvest), non-residents can subscribe at head office and branches) or call 02-888-8888 press 869
• Krung Thai Bank Public Company Limited, at all branches, or call 02-111-1111, or subscribe online via Krungthai Next application through Money Connect by Krungthai (for individuals only).
• The Siam Commercial Bank Public Company Limited, at all branches, or call 02-777-6784, or subscribe online via the SCB EASY application (for individuals only), including InnovestX Securities Co., Ltd., as a sales unit of the Siam Commercial Bank Public Company Limited.
• Kiatnakin Phatra Securities Public Company Limited (including Kiatnakin Phatra Bank Public Company Limited as the sales unit, Tel. 02-165-5555). Individual investors may also subscribe online via the Dime! application.
• Asia Plus Securities Company Limited, or call 02-680-4004
• Bank of Ayudhya Public Company Limited, at all branches, or call 1572
• Krungthai XSpring Securities Company Limited, call 02-695-5555
• Maybank Securities (Thailand) Public Company Limited, call 02-658-5050
• TMBThanachart Bank Public Company Limited, at all branches, or call 1428, press #4 (booking is open only to institutional investors), and at Thanachart Securities Public Company Limited as a sales agent of TMBThanachart Bank Public Company Limited.
• Yuanta Securities (Thailand) Company Limited, call 02-0098351-56

Note:

• The registration statement and draft prospectus have not yet become effective as they are under the consideration of the Securities and Exchange Commission (SEC).
• The allocation of the debentures is at the discretion of the arrangers as deemed appropriate.

Disclaimer:

• Investments carry risks. Investors must study and understand the product characteristics, the conditions of returns, and the risks before making an investment decision.
• Investors can find more details in the information filing and draft prospectus at www.sec.or.th