Core Viewpoint - Changhua Chemical (301518.SZ) is actively developing products and expanding its market presence in the lithium battery sector, although the sales volume in this area remains relatively small [1] Group 1: Product Development - The company is involved in the development of specialty polyether polyols and is constructing carbon dioxide polyether polyols, which can be used to produce high-performance polyurethane adhesives and water-based PUDs [1] - Some of the high-performance polyurethane adhesives and water-based PUD products are applied in the lithium battery industry [1] Group 2: By-products and Applications - The by-product of carbon dioxide polyether, propylene carbonate, can be used through ester exchange to produce dimethyl carbonate and ethyl methyl carbonate, which are applicable in battery electrolytes [1]