Sun lubricant returned back to China shortly after the reform and opening of the China market.

1986 – China Sun Oil Company started to produce high quality lubricant in Shenzhen.

2011 – 25 years anniversary of the joint venture plant. The brand and quality of product are highly appreciated by customers in China.

2016 – A wholly owned company 森诺可石油（深圳）有限公司 is incorporated in Shekou to provide consistent good services to Sunoco distributors and end users.