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Li He Xin

CEO

Graduated from Hebei University of Technology in 2005 with a Master’s degree in Applied Chemistry.

Serving as the General Manager of the Lubricant Grease Division at Ling Hang Petrochemical (Tianjin) Co., Ltd.

Member of the Grease Association Expert Group

Has been recognized by Tianjin Municipality as an Outstanding Project Worker in the “Uphold Ideals, Emulate Dedication” initiative.

Awarded as the Branch’s Outstanding Production Manager for three consecutive years.

Awarded the First Prize for QC Achievements by Sinopec for two consecutive years.

With 20 years of experience in grease production and R&D, Senior Engineer.

Has published numerous papers in core journals such as Lubrication Science and Technology, and holds over ten utility‑model patents.

We continue to conduct research and development in areas such as silent bearing grease, electric tool grease, and robot grease.

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Zhang Weiyuan

Chief Scientist

Graduated from Hebei Normal University of Science and Technology in 2025 with a Master’s degree in Inorganic Chemistry.

Serving as a Research and Development Engineer in the Lubricant Division of Ling Hang Petrochemical (Tianjin) Co., Ltd.

During my master’s program, I published four SCI-indexed papers, four papers in Chinese journals, and obtained two patents.
Participated in one National Natural Science Foundation project and two provincial-level projects; received the National Scholarship once, the Academic Excellence Scholarship three times, two Special Scholarships, and was recognized as an Outstanding Individual twice.
Primarily engaged in research and development in areas such as lubricating greases for silent bearings, electric‑tool greases, and robotic greases.