American Procter & Gamble Company hired Zhang Lixin as its senior researcher and project director. At Procter & Gamble, she supports the research and development of products such as hair loss regeneration, weight loss and anti-fatigue. Zhang Lixin won the Procter & Gamble Hair Regeneration Technology Progress Award with 1999, and won 7 international patents. Her outstanding performance made Procter & Gamble praise her. Just as the other party gave her a raise, Zhang Lixin unexpectedly submitted her resignation application.

In 200 1 10, after Zhang Lixin resigned from the high-paying position of Procter & Gamble, he founded TechWorld Corporation, Inc with two doctors studying in the United States. In the following year, Tekvard acquired American Spotted Cloth Company and American CORISEN Company successively. The company was upgraded to Tekvard Co., Ltd., and Zhang Lixin became the chairman and president of the company. The new company is mainly engaged in the research and development, production and sales of products closely related to human beings, such as biological and chemical drugs, medical devices, biological diagnostic reagents, clinical nutrients, functional drinks, health foods and so on.