Milestones

Huashan Additives Plant founded in Chaoyang, Beijing

Huashan Additives Plant was founded in Chaoyang District, Beijing, and the first light stabilizer intermediate line started production the same year. Tiangang has been in the polymer anti-ageing field ever since.

First domestic producer of high-performance hindered amine light stabilizer 622

BW-10LD, an environmentally friendly high-molecular-weight hindered amine light stabilizer developed in cooperation with the Beijing Research Institute of Chemical Industry, went into production, making Tiangang the first company in China to produce high-performance HALS 622.

Daxing Weishanzhuang plant goes into operation

A site of 100 mu (6.7 hectares), where the three inspection steps of process control, gas and liquid chromatography analysis and finished-product testing were fixed from then on, and batch-to-batch quality consistency improved accordingly.

ISO 9001 quality certification

Certified to GB/T 19001-2000 / ISO 9001:2000 on 16 January.

Acquisition of the former Beijing Daxing District Chemical Plant

Tiangang formally acquired the former Beijing Daxing District Chemical Plant, including land, plant and other assets, laying a good foundation for the long-term stable development of the company.

Guangzhou natural exposure test base inaugurated

In cooperation with the Guangzhou Institute of Synthetic Materials, the "Beijing Tiangang Additives Co., Ltd. Guangzhou Natural Ageing Exposure Test Base" was inaugurated.

Gu'an ten-thousand-tonne base launched

Investment began in Gu'an County, Hebei Province, on China's first ten-thousand-tonne light stabilizer production base, with a total investment of RMB 5.5 hundred million yuan (RMB 550 million).

Gu'an base phase one on stream

Phase one, with an investment of RMB 1.5 hundred million yuan (RMB 150 million), completed and commissioned China's first ten-thousand-tonne light stabilizer production base.

Experts from MOST and the Chinese Academy of Sciences visit Daxing

The Minister of Science and Technology and a group of experts from the Institute of Chemistry of the Chinese Academy of Sciences visited the Tiangang Daxing plant to inspect and guide its work.

Recognized as a Beijing (provincial-level) Enterprise Technology Centre

The Tiangang enterprise technology centre was recognized by the Beijing Municipal Commission of Economy and Information Technology as a Beijing (provincial-level) Enterprise Technology Centre.

Production safety standardization certification

Tiangang completed production safety standardization certification.

First Prize for Science and Technology Progress

Tiangang received a First Prize for Science and Technology Progress.

Tiangang New Materials (Langfang) listed

Tiangang New Materials (Langfang) Co., Ltd., a subsidiary, was listed on the Shijiazhuang Equity Exchange under equity code 660300.

Industry laboratory designated; joint venture contract signed with Clariant

The China Plastics Processing Industry Association designated Tiangang as its "China Plastics Weathering Technology Laboratory", making it the only plastics weathering technology laboratory in the country; a joint venture contract was signed with the Swiss fine chemicals company Clariant to jointly invest in a high-end light stabilizer production base; and construction of the Cangzhou project began.

Beijing Top 100 Private Enterprises; Cangzhou base construction starts

Tiangang was named one of the Beijing Top 100 Private Enterprises by the Beijing Federation of Industry and Commerce, and construction of the Cangzhou project began.

Engineering technology research centre recognized; European company established

Tiangang was recognized by the China National Light Industry Council as the "China Light Industry Plastics Weathering Engineering Technology Research Centre"; in October of the same year the overseas sales company Tiangang Chemicals Europe B.V. was established in Belgium, and the company presented its innovative structural light stabilizers HS-625 and T-68 for the first time at the AMI polyolefins conference in Europe.

Two honours of the 13th Five-Year Plan for the plastics processing industry

On 2020-11-03 the China Plastics Industry Science and Technology Conference opened at the Nanjing International Expo Centre, where Tiangang received two titles: "Outstanding Scientific and Technological Achievement Award of the 13th Five-Year Plan for the Plastics Processing Industry" and "Outstanding Member Enterprise for Scientific and Technological Innovation of the 13th Five-Year Plan for the Plastics Processing Industry".

Clariant joint venture plant opens in Cangzhou

On 12 April Tianji Clariant Chemical Auxiliaries (Cangzhou) Co., Ltd., the joint venture between Tiangang and the Swiss company Clariant, was formally opened. The plant is located in the national Cangzhou Lingang Economic and Technological Development Zone in the Bohai New Area of Cangzhou, Hebei Province, and implements a project with an annual capacity of 2,000 tonnes of polymer material additives. The joint venture plant was completed and commissioned after four years of construction.

HS-625 project wins second prize for science and technology progress from the China National Light Industry Council

In August the development and application project for the light stabilizer HS-625 won the "Second Prize for Science and Technology Progress" for 2020 from the China National Light Industry Council. The project took more than ten years from molecular structure design through chemical synthesis to industrial scale-up, and filled a domestic gap in this product category.

Three-step leap in specialized and sophisticated enterprises; Cangzhou base phase one in production

Tiangang was recognized as a Beijing "specialized, refined, distinctive and innovative" enterprise in January, as a Beijing specialized and sophisticated "little giant" in April, and on 9 August it entered the fourth batch of national-level specialized and sophisticated "little giant" enterprises published for public comment by the Ministry of Industry and Information Technology. In the same period, phase one of the 50,000 t/a project of Tianji Chemical Auxiliaries (Cangzhou) — 12,000 tonnes of nitrogen-heterocyclic fine chemical intermediates plus 5,000 tonnes of polymer material additives — went into formal production in August, after completion acceptance in July 2021.

Top ten enterprises; Ringier Technology Innovation Award

In December Tiangang was named by the China National Light Industry Council as one of the "Top Ten Enterprises of China's Plastics Additives Industry for 2022", and its N-alkyl low-basicity polymeric hindered amine light stabilizer won the "2022 Plastics Industry Ringier Technology Innovation Award", making it the first Tiangang product to win this award in consecutive years.

First Prize for Productivity Promotion (Innovative Development)

On 15 December the China Association of Productivity Promotion Centres held the award ceremony for the "2021 Productivity Promotion Award", at which the Tiangang project received the First Prize for Productivity Promotion (Innovative Development). The award was established with the approval of the Ministry of Science and Technology and is an important award in the field of productivity promotion and scientific and technological services in China.

"Government–industry–academia–research" collaborative innovation base opens in Daxing

On 24 April the first "government–industry–academia–research" collaborative innovation base in Weishanzhuang Town, Daxing District, opened at the Tiangang Group, with the participation of Beijing University of Chemical Technology, the Daxing District Science and Technology Commission and the Daxing District Bureau of Economy and Information Technology. Tiangang opened up the testing platform, pilot-scale space and expert resources it had built up over more than twenty years as a public technical service platform.

Ringier award retained; standing deputy director unit of the agricultural film committee

The new-generation high-molecular-weight polymeric hindered amine light stabilizer HS-950 retained the "2023 Ringier Technology Innovation Award" — the product took 8 years from molecular structure design to large-scale production and, according to figures published by Tiangang, can extend the service life of floats for floating photovoltaic plants from 3–5 years to 10–20 years. In May Tiangang was elected standing deputy director unit of the sixth council of the Agricultural Film Committee of the China Plastics Processing Industry Association.

Listed in the Beijing catalogue of key new materials for first-batch application

In April the Beijing Municipal Bureau of Economy and Information Technology published the "Guiding Catalogue of Key New Materials in Beijing for First-Batch Application Demonstration (2024 Edition)", in which Tiangang's new high-performance low-basicity polymeric hindered amine light stabilizer was included. In the same month, at CHINAPLAS 2024, the dedicated compound for recyclable long-life circulating agricultural mulch film developed by Tiangang with a well-known domestic petrochemical enterprise had already produced more than 20,000 tonnes, which was placed on the market in Xinjiang, Gansu and other regions.

Chief technical engineer receives the Capital Labour Medal

In May Dr Chen Wei, chief technical engineer of Tiangang Additives, was awarded the 2024 Capital Labour Medal. She has worked on light stabilizers for sixteen years, has led and taken part in several dozen national-level funds and key company projects, has commercialized 28 invention patents (20 of them granted in China or overseas), and has participated in drafting 12 national standards and 4 industry standards.

Environmental approval granted for expansion at the Cangzhou joint venture

The environmental impact assessment for the 1,300 t/a light stabilizer expansion project of Tianji Clariant Chemical Auxiliaries (Cangzhou) Co., Ltd. was approved, authorizing an additional 1,300 t/a of light stabilizer capacity and leaving room for the capacity ramp-up of high-end grades.

Second high-performance additives line commissioned at Clariant Cangzhou

On 3 November the second high-performance additives production line of Tianji Clariant Chemical Auxiliaries (Cangzhou) Co., Ltd. was formally commissioned, focusing on raising capacity for two core stabilizers, Nylostab™ S-EED™ and AddWorks™ TFB 117. With Cangzhou as its hub the new line serves Asia-Pacific markets including Japan, South Korea and the Taiwan region, mainly for the textile fibre and engineering plastics industries.

Scientific and technological achievement evaluation: overall technology reaches the international advanced level

On 18 March the Beijing Advanced Materials Industry Promotion Association convened a scientific and technological achievement evaluation meeting, at which an evaluation committee of seven experts from Tsinghua University, the Institute of Chemistry of the Chinese Academy of Sciences and the China Petroleum and Chemical Industry Federation unanimously concluded that the overall technology of Tiangang's project "Development and Application of a New Series of Multifunctional Low-Basicity Hindered Amine Light Stabilizers" had reached the international advanced level. The project innovatively designed and synthesized a series of N-alkoxylated structures with high light-stabilizing activity, which have already been applied in agriculture, automotive, new energy, medical devices and other fields.

Dr Chen Wei named a Beijing Municipal Model Worker

In July Dr Chen Wei, chief technical engineer of Tiangang Additives, was awarded the honorary title of "Beijing Municipal Model Worker". The newspaper Labour Afternoon News devoted a full page to her achievements under the headline "The Game Changer in the Field of Light Stabilizers", describing her as "breaking the foreign monopoly". The honour was conferred by the Beijing Municipal People's Government in April 2025.

Safety production month skills competition concludes at the Daxing base

On 22 September the safety production month series of skills competitions at the Tiangang Group Daxing base came to a close, with 93 person-times taking part in four skills contests.