Quick answer: the top-ranked transformers oil brands in China on this list are Kun Lun Run Hua (Beijing), Zhang Cheng Run Hua You (Beijing) and COPTON (Shandong). 4 Chinese brands are ranked by registration, contact and product data; 10 companies are listed in total. Updated 21 Oct 2026.
Ranked transformers oil brands
How this list is ranked- 01
Kun Lun Run Hua
昆仑润滑
- Transformers oil
- Lubricating Oils and Greases
- Hydraulic oils
Registered legal entity on file; email and phone published; operating since 1998.
View profile → - 02
Zhang Cheng Run Hua You
长城润滑油
- Transformers oil
- Lubricating Oils and Greases
- Hydraulic oils
Registered legal entity on file; email and phone published; operating since 2002.
View profile → - 03
COPTON
康普顿COPTON
- Transformers oil
- Diesel exhaust fluid
- Industrial lubricants
Registered legal entity on file; phone published; operating since 1992.
View profile →
- 04
Su Zhong 苏中
Registered as 江苏双江能源科技股份有限公司 in 2004.
- Transformers oil
- Mineral Oil
Why it ranks here: registered legal entity on file; email and phone published; operating since 2004.
International transformers oil brands in China
Foreign-owned groups with Chinese manufacturing or sales companies. Listed separately so the ranking above covers Chinese manufacturers only.
- INT
ExxonMobil ExxonMobil埃克森美孚
Registered as 埃克森美孚(中国)投资有限公司 in 1996.
- Transformers oil
- Toughening Agents
- Polypropylene
- Catalyst
Why it ranks here: registered legal entity on file; email and phone published; operating since 1882.
- INT
Shell Shell壳牌
Registered as 壳牌(中国)有限公司 in 1996.
- Transformers oil
- Oil
- Lubricating Oils and Greases
- Propylene Oxide
- Hydraulic oils
- Mineral Oil
Why it ranks here: registered legal entity on file; email and phone published.
- INT
Dow Dow陶氏化学
Registered as 陶氏化学(中国)投资有限公司 in 1997.
- Transformers oil
- Silicone rubber
- Toughening Agents
- Propylene Oxide
- Demulsifiers
- Mold Release Agents
Why it ranks here: registered legal entity on file; phone published; operating since 1897.
- INT
Gao Ke Run Hua You 高科润滑油
Registered as 中晟新材料科技(宜兴)有限公司 in 2023.
- Transformers oil
- Mineral Oil
Why it ranks here: registered legal entity on file; email and phone published; operating since 1992.
More Transformers oil brands and companies
| Brand | Registered company | Website |
|---|---|---|
| HLUBE高路宝HLUBE | 大连高路宝润滑油有限公司 | — |
| NYlube南油NYlube | 广东南油石化有限公司 | — |
Comparison table
| # | Company | Province | Est. | Registered company |
|---|---|---|---|---|
| 01 | Kun Lun Run Hua昆仑润滑 | Beijing | 1998 | 中国石油天然气集团有限公司 |
| 02 | Zhang Cheng Run Hua You长城润滑油 | Beijing | 2002 | 中国石油化工集团有限公司 |
| 03 | COPTON康普顿COPTON | Shandong | 1992 | 青岛康普顿科技股份有限公司 |
| 04 | Su Zhong苏中 | Jiangsu | 2004 | 江苏双江能源科技股份有限公司 |
Frequently asked questions
How many transformers oil manufacturers and suppliers in China are listed here?
10 companies are listed for transformers oil (变压器油). 4 Chinese manufacturers have full profiles and are ranked; 4 international brands with China operations are listed separately.
Where are China's transformers oil manufacturers located?
Among profiled companies: Beijing (3), Jiangsu (2), Shanghai (2), Shandong (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, 8 have an official website and 6 publish an email address.