History

2001

Technological Pioneer

China's first domestically produced 20,000-ton/year methyl ethyl ketone (MEK) plant was completed and put into operation, achieving a breakthrough in key technologies.

2002

Company Establishment

Zibo Qixiang Tengda Chemical Co., Ltd. was officially established, marking the beginning of its entrepreneurial journey.

2008

Establishing a Leading Position

Qingdao Siyuan's 80,000-ton/year MEK plant went into operation, solidifying its leading position in the domestic industry and enhancing its global competitiveness.

2010

Entering the Capital Market

The company successfully listed on the Shenzhen Stock Exchange.

2013

Industry Chain Extension

A 100,000-ton/year maleic anhydride plant was completed and put into operation, marking the company's extension from C4 feedstock to high value-added chemicals.

2015

Capacity and Market Dominance

Total MEK production capacity reached 180,000 tons/year, with a domestic market share exceeding 40% and exports accounting for over 70% of the national total, making it a core global supplier.

2016

Completed Industrial Chain

A 450,000-ton/year low-carbon alkane dehydrogenation and comprehensive utilization project was put into operation, essentially completing the C4 industrial chain and achieving a comprehensive utilization rate at an advanced world level.

2017

Scale Upgrade

Total annual production capacity of maleic anhydride reached 200,000 tons/year, forming a significant scale advantage in the new materials field.