Quick answer: the top-ranked diesel exhaust fluid brands in China on this list are COPTON (Shandong), Kun Lun Zhi Xing (Beijing) and LTH (Sichuan). 5 Chinese brands are ranked by registration, contact and product data; 10 companies are listed in total. Updated 21 Oct 2026.
Ranked diesel exhaust fluid brands
How this list is ranked- 01
COPTON
康普顿COPTON
- Diesel exhaust fluid
- Transformers oil
- Industrial lubricants
Registered legal entity on file; phone published; operating since 1992.
View profile → - 02
Kun Lun Zhi Xing
昆仑之星
- Diesel exhaust fluid
Registered legal entity on file; email and phone published; operating since 1998.
View profile → - 03
LTH
泸天化LTH
- Diesel exhaust fluid
- Carbamide
Registered legal entity on file; email and phone published; operating since 1959.
View profile →
- 04
Xin Lian Xin 心连心
Registered as 河南心连心化学工业集团股份有限公司 in 2006.
- Diesel exhaust fluid
Why it ranks here: registered legal entity on file; email and phone published; operating since 1969.
- 05
Zhang Cheng Jia Lan 长城佳蓝
Registered as 中国石油化工集团有限公司 in 1983.
- Diesel exhaust fluid
Why it ranks here: registered legal entity on file; email and phone published; operating since 2002.
International diesel exhaust fluid brands in China
Foreign-owned groups with Chinese manufacturing or sales companies. Listed separately so the ranking above covers Chinese manufacturers only.
- INT
BLUESTAR 蓝星BLUESTAR
Registered as 中国蓝星(集团)股份有限公司 in 1989.
- Diesel exhaust fluid
- Industrial cleaning agents
- Engine coolants
- Resin
- Windshield washer fluid
- Carbon fiber
Why it ranks here: registered legal entity on file; email and phone published; operating since 1984.
More Diesel exhaust fluid brands and companies
| Brand | Registered company | Website |
|---|---|---|
| HONKANG弘康HONKANG | 河南弘康环保科技有限公司 | hnhkhb.cn |
| Jian Feng建峯 | 重庆建峰工业集团有限公司 | cnjf.com |
| Kelas可兰素Kelas | 江苏可兰素环保科技有限公司 | kelas.cc |
| Mei Feng Jia Lan美丰加蓝 | 四川美丰化工股份有限公司 | meifblue.com |
Comparison table
| # | Company | Province | Est. | Registered company |
|---|---|---|---|---|
| 01 | COPTON康普顿COPTON | Shandong | 1992 | 青岛康普顿科技股份有限公司 |
| 02 | Kun Lun Zhi Xing昆仑之星 | Beijing | 1998 | 中国石油天然气集团有限公司 |
| 03 | LTH泸天化LTH | Sichuan | 1959 | 四川泸天化股份有限公司 |
| 04 | Xin Lian Xin心连心 | Henan | 1969 | 河南心连心化学工业集团股份有限公司 |
| 05 | Zhang Cheng Jia Lan长城佳蓝 | Beijing | 2002 | 中国石油化工集团有限公司 |
Frequently asked questions
How many diesel exhaust fluid manufacturers and suppliers in China are listed here?
10 companies are listed for diesel exhaust fluid (车用尿素). 5 Chinese manufacturers have full profiles and are ranked; 1 international brands with China operations are listed separately.
Where are China's diesel exhaust fluid manufacturers located?
Among profiled companies: Beijing (3), Shandong (1), Sichuan (1), Henan (1).
How is this list ranked?
By the completeness and verifiability of each company's data: a registered legal entity, an official website, published contact details, a product range and company history. The rank is not a quality rating, and no company pays for its position. See How we rank for the full method.
How do I contact these manufacturers?
Each listing shows the company's official website and, where published, its email and phone number. Of the 10 companies listed, 10 have an official website and 5 publish an email address.