The largest refining and petrochemical integration project invested by private enterprises and the largest in construction in China.
Zhejiang Province
| ●Tongxiang, Jiaxing (including Zhouquan) |
| ●Jiaxing Port Area |
| ●Changxing, Huzhou |
Outside Zhejiang Province
| ●Nantong, Jiangsu | ●Suqian, Jiangsu |
| ●Lujiang, Anhui | ●Zhangzhou, Fujian |

Tongkun's PET chips include cationic chips, fully-dull chips, semi-dull chips, and super bright chips. These chips are generally white, but a few colored chips can be customized according to downstream spinning demands.
80% of the chemical fiber produced annually in China is polyester filament;
Of the polyester filament, more than 20% comes from Tongkun.
Polyester filament is the main category of chemical fiber. Tongkun's current polyester filament products include six categories: POY, FDY, DTY, ITY, combined filaments, and mid-tenacity filaments. Totaling more than 1,000 kinds of products, Tongkun is known as“the Wal-Mart of Polyester filament".
