In 1964, begin becoming the State Industry Ministry to appoint the valve manufacturing plant;

Formally build the factory in 1972;

In October 1985, registered “Huangshan brand" valve trademark;

In 1989, awarded “State Second Grade Enterprise ";

Gain “Anhui quality management prize “every four years from 1990;

In 1992, firmly believed for “advanced enterprise of technology management” by the machinery ministry;

The Poland government economy delegation inspected to the factory on April 30th, 1996;

In 1996, firmly believed for “High and New Technology Enterprise of Anhui Province;

“Huangshan Brand “high and medium pressure valve is firmly believed for “National customers satisfaction product” and well-known brand. The products that the company independently researches, develops and manufactures were gained 25 items superior products of ministry and 16 items superior products of province.

In 1996, gained the certificate of authority to use official Monogram from API (Respectively Past Audit of change certificate of API in 2006, License: 6D-0246);

The first batch nuclear valve is exported to Pakistan in April 1997;

In 1997, the power station globe valve was firmly believed for “High and New Technology Product of Anhui Province”;

In 1997, gained the certificate of ISO9001 from DNV (Respectively Past Audit of change certificate of ISO in 2005, Certificate Number: QSC-5513);

In 1998, large diameter bellows globe valve was firmly believed for “state important new product”

In 1999, by way of the technical transformation, the product design is adopted two-dimensional and three-dimensional CAD technology

“Huangshan Brand” forged valve was gained the title of “Anhui province famous brand product”

Total innings of pressure pipeline component manufacturing unit safety quality testing is registered by way of the nation in May 2003;

Gained Pressure Pipeline Component Manufacturing Unit Safety Registered Certificate (Certificate Number: GYZ-A-0190) in May 2003.

The enterprise success carrying on changes of system, and joined the largest industrial enterprise group of Huangshan city— Huangshan Yongjia Group in December2005

Company name changed from “Anhui Tunxi high pressure valve factory” to “Anhui Tunxi High pressure valve Co., Ltd.” in July 2006

Technical transformation item and new factory building overall relocation item of Anhui Tunxi High pressure valve Co., Ltd. were begun on August 18th, 2006.