On April 22, 2026, the Nanjing–Ma’anshan (S2) Intercity Railway officially began initial operations, connecting residents of Nanjing and Ma’anshan and marking a major milestone in Yangtze River Delta integration.

As AOC’s Asia-Pacific headquarters, Evergreen Chemicals has been deeply involved in the composites industry for over 30 years, providing high-performance materials for demanding applications.

Safety in Confined Spaces

The S2 line spans 54.23 kilometers, operating up to 120 km/h. In these enclosed areas, interior material safety is critical. Flame-retardant gelcoats form a smooth, dense protective layer over fiberglass components, ensuring:

• High flame resistance

• Low smoke and non-toxic performance

• Durability and wear resistance

In fire scenarios, they slow fire spread and reduce toxic smoke, protecting passengers and buying critical response time.

Global Recognition

AOC’s Neogel A400TV-F-XXXX halogen-free gelcoats deliver industry-leading performance, meeting EU EN45545 HL2/HL3 fire standards when paired with AOC resins. Evergreen Chemicals has supported numerous metro projects worldwide, including Shanghai, Beijing, Nanjing, Chengdu, Hefei, Taiwan, Hong Kong, as well as international systems in New York, Montreal, and Southeast Asia.

Across over twenty domestic and global projects, AOC flame-retardant gelcoats continue to safeguard millions of daily passengers, proving essential in modern rail transit.

Looking Ahead

The launch of the Nanjing–Ma’anshan S2 line highlights the importance of advanced materials in urban transit. Evergreen Chemicals, together with AOC, remains committed to delivering reliable, high-performance solutions that ensure safety, durability, and sustainable growth in rail networks worldwide.