The main business of Shanxi Synthetic Rubber Group Co Ltd. and Shanna Synthetic Rubber Group Co Ltd manufacture the largest domestic CR production bases.

Shanxi Rubber has five CR post-treatment production lines and annually produces 25,000 tons of CR and Shanna has three CR post-treatment production lines and annually produces 30,000 tons of CR.

The market share of its CR products in the domestic market is above 39 percent. The products have already been sold to 38 countries and regions.