COSL Chemicals (Tianjin) Ltd. is a subsidiary of China Oilfield Services Limited (COSL), established in 1993. The company specializes in the research, development, and production of chemicals used in oilfield operations. Their product range includes drilling fluids, emulsifiers, corrosion inhibitors, and other chemicals critical for oil exploration and production. The company has a strong presence in China's offshore oil industry, leveraging advanced technologies to enhance operational efficiency and environmental safety?