1. Sinopec Corporation
2. PetroChina Company Limited
3. Shen Hua Chemical Industrial Co. Ltd.
4. Huizhou LCY Elastomers Corp.
5. Hangzhou Zhechen Rubber Co. Ltd.
6. Ningbo Shunze Rubber Co. Ltd.
7. Panjin Heyun Industrial Group Co. Ltd.
8. Chi Mei Corporation