Qingdao Lidong Chemical Co Ltd (青岛丽东化工有限公司) is a large-scale joint venture invested with $1 billion by GS Holdings, Oman Oil Company S.A.O.C. and Qingdao Red Star Organic Chemical Co Ltd. It is the biggest initial capital investment by a foreign enterprise in the manufacturing industry in Shandong province. 

The company was established in December 19, 2003, and located in Qingdao Economic and Technological Development Zone, which occupies an area of more than 1 million square meters. 

The annual production of aromatic products reaches 2 million tons, and the products are widely used in chemical fiber textiles, plastics, medicines, construction materials and other fields.