Group 1 - The 12th World Congress of Chemical Engineering and the 21st Asia-Pacific Chemical Alliance Conference opened in Beijing, marking the first joint event in China [1] - The chemical engineering sector is seen as a bridge discipline that connects fundamental sciences with industrial applications, driving societal progress and development [1] - The chemical industry is entering a new transformative phase due to the acceleration of a new round of technological revolution and industrial change [3] Group 2 - Liaohe Petrochemical's history dates back to the 1970s when it began producing domestic polyester fibers, marking a significant milestone in China's chemical industry [4] - Chen Ying, a senior expert at Liaohe Petrochemical, led the development of PETG copolyester, making China the third country to master its production technology after overcoming foreign monopolies [6][9] - The development of high-performance synthetic rubber at Dushanzi Petrochemical has allowed the company to break foreign monopolies in the domestic market, with significant production capacity established [25][27] Group 3 - Lanzhou Petrochemical has been a key player in China's refining and petrochemical industry since the 1950s, contributing to the development of synthetic rubber products [34] - The annual production of synthetic rubber in China reached 9.1 million tons by 2023, accounting for nearly half of the global market share, significantly altering the global rubber industry landscape [37] Group 4 - Jilin Petrochemical, established in the 1950s, has evolved from relying on imported technology to developing its own, with plans to reach an annual ABS production capacity of 1.8 million tons by 2025 [45] - Dushanzi Petrochemical achieved a world-first in the continuous production of different metallocene catalysts, showcasing China's capability in independent innovation [53]