■January 18, 1995, Beijing Boda Environmental Engineering Co., Ltd. was incorporated in Beijing, with the shareholders of Beijing New Energy Development Service Company and Malaysia Jidai Limited, and the registered capital of the company was 150,000 U.S. dollars.
■ March 30, 1995, to undertake the first project - Heilongjiang Zhengda Industrial Company Limited slaughterhouse wastewater treatment project.
■October 1998, the Chinese shareholder changed to Beijing Urban and Rural Construction Group Co., Ltd. and carried out the expansion of shares and capital increase, the registered capital increased to 600,000 U.S. dollars, the business expanded to food, slaughtering, chemical, beer, pharmaceutical and other industrial wastewater treatment.
■ January 19, 1999, the establishment of Miyun environmental protection complete sets of equipment branch.
■On June 8, 2000, Mihua Group and Beijing Urban and Rural Construction Group Co., Ltd. signed an agreement in Beijing for a joint venture of Beijing Mihua Boda Environmental Engineering Co. and the registered capital of the company was increased to US$2.5 million.
■January 15, 2000, passed the ISO9001 quality management system certification.
■July 18, 2000, in the Great Hall of the People, held a celebration of the establishment of Beijing Meihua Boda Environmental Engineering Co. The State Environmental Protection Administration (SEPA), the Environment and Resources Committee of the National People's Congress (NPC), the Beijing Municipal Government, and the U.S. Minister to China attended the event, which became an important event in the history of Sino-U.S. environmental cooperation.
■February 7, 2001, jointly signed the World Bank Loan--Hebei Urban Environmental Protection Consulting Project (HUEP) with Meihua Group, marking the company's first entry into the WB consulting project.
■February 22, 2001, the company obtained the "Environmental Protection Facility Operation Qualification Certificate" issued by the State Environmental Protection Administration.
■March 5, 2001, the company obtained the Second Class Qualification Certificate of Municipal Construction issued by the Beijing Municipal Construction Committee.
■On May 23, 2001, the Company obtained the Class B Qualification Certificate for Special Engineering Design issued by the State Environmental Protection Administration.
■June 20, 2001, the company's general contracting of Zhejiang Huzhou Bilang Sewage Treatment Plant project completion acceptance standards, marking the company realized the industrial wastewater treatment business to the city water supply, municipal wastewater treatment and other areas of business expansion.
■August 16, 2001, the Chongqing Municipal Environmental Protection Bureau issued by the Environmental Protection Administration of the "Environmental Protection Management Class A Qualification Certificate".
■August 28, 2001, Chongqing Branch was established.
■September 18, 2001, the registered capital increased to 5 million U.S. dollars.
■November 16, 2001, Shanghai Branch was established.
■February 2002, signed the general contracting project of municipal sewage treatment in Chongqing Wulong, Yunyang and Zhongxian one after another, and the contract value exceeded 100 million Yuan for the first time.
■June 19, 2002, obtained by the Beijing Municipal Construction Commission issued by the municipal public works construction general contracting two qualification certificates and environmental protection engineering professional contracting two qualification certificates.
■On October 29, 2002, the company was awarded the title of "Honoring Contracts and Keeping Reputation" for seven consecutive years.
■March 1, 2004, the Beijing Municipal Administration for Industry and Commerce "trustworthy enterprise" title.
■On January 8, 2005, the company obtained the Certificate of Class III Qualification for Specialized Contracting of Electromechanical Equipment Installation Engineering issued by Beijing Municipal Construction Committee.
■On January 25, 2005, the Beijing Municipal Bureau of Commerce approved the plan of adjusting the company's shareholding structure, and PURESINO International Ltd. became the owner of MHB.
■May 20, 2005, the "Chongqing Longzhang Industrial Co., Ltd. Xiquan Pulp Mill Middle Wastewater Treatment Project" was awarded the "Chongqing Outstanding Environmental Protection Project Certificate" by Chongqing Environmental Protection Industry Association.
■June 1, 2005, Chongqing Environmental Protection Industry Association "Chongqing Environmental Pollution Treatment Qualification Class A Certificate".
■On October 10, 2005, the company passed ISO14001 environmental management system certification and GB/T28001 occupational health and safety certification.
■On September 25, 2006, the company obtained the Class A Qualification Certificate of Environmental Pollution Control Facility Operation issued by the State Environmental Protection Administration (SEPA).
■On December 1, 2006, the Company signed the Franchise Agreement for Urban Sewage Treatment of Guanghan City with the People's Government of Guanghan City, Sichuan Province.
■January 20, 2007, was named 2006 Outstanding Environmental Engineering Company by China Water Network and China Environment News.
■February 7, 2007, the company obtained the Class A Certificate of Engineering Design issued by the Ministry of Construction.
■April 10, 2007, signed the "Mianzhu City Urban Sewage Treatment Franchise Agreement" with the People's Government of Mianzhu City, Sichuan Province.
■June 12, 2007, became the director of the National Federation of Industry and Commerce Environmental Services Chamber of Commerce.
■On June 20, 2008, the company undertook the world's first productive coal-to-olefin wastewater treatment project, "Shenhua Baotou Coal-to-Olefin Project Wastewater Treatment EPC Project".
■August 6, 2008, the company obtained the First Class Qualification Certificate for General Contracting of Municipal Public Works, the First Class Qualification Certificate for Specialized Contracting of Environmental Protection Works and the Second Class Qualification Certificate for Specialized Contracting of Mechanical and Electrical Equipment Installation Works issued by the Ministry of Housing and Urban-Rural Development.
■December 16, 2008, Yuntianhua Group Jinxin Chemical undertook a number of projects: demineralized water, reuse water treatment, gas water post-treatment, sewage treatment projects, marking the company's success in the coal chemical industry to provide a comprehensive water system solutions.
■In January 2009, the "Shenhua Baotou Coal Olefin Project Sewage Treatment EPC Project" was awarded the "2008 Advanced General Contractor in Quality Management" by Shenhua's owner, "2008 Outstanding EPC General Contractor" and "HSE Mobile Trophy".
■In March 2009, the company was honored as one of the "Top 10 Innovative Environmental Engineering Companies of the Year in the Water Industry" by China Water Network and Tsinghua University for three consecutive years.
■In May and September 2009, the company won the bidding for the EPC project of chemical water plant of Shenhua Coal-to-Oil Self-supply Power Plant, and the EPC general contracting project of circulating water plant of 60,000 tons of paraformaldehyde project of Shenhua Ning Coal Group respectively, and the relationship with the group's customers has been further developed.
■In October 2009, two projects, "Guanghan Sanxingdui City Sewage Treatment Plant" and "Inner Mongolia Mengniu Dairy (Group) Co. The two projects were honored by the Environmental Protection Industry Association as "2009 National Key Practical Technology Demonstration Projects for Environmental Protection".
■On October 15, 2009, Sichuan Branch won the bid for the Wuliangye project, realizing a new breakthrough in industrial wastewater treatment in the southwest region.
■In November 2009, the company was honored as "2009 Famous Water Enterprise" by China Water Conservancy Association and China Water Conservancy News.
■In January 2010, the Northwest Branch was established.
■January 18, 2010, the company's fifteenth anniversary celebrations, people from all walks of life gathered at the China World Hotel, *** with the celebration of 15 years of life of the U.S. Huaboda