Report Cites Tiangang Light Stabilizers Alongside International Giants

From 29 to 30 October 2026, the "Agricultural Plastics & Biobased and Biodegradable Plastics Technology and Application Seminar and the 2026 Annual Meeting of the Degradable Plastics Committee of the China Plastics Processing Industry Association", hosted by the China Plastics Processing Industry Association, was grandly held at the Nanjing International Expo Center in Jiangsu Province. The meeting was held concurrently with the "2026 China International Plastics Exhibition and the 7th Exhibition of New Plastic Materials, New Technologies, New Equipment and New Products", bringing together numerous representatives from national ministries and commissions, industry associations, research institutes and enterprises across the upstream and downstream of the industrial chain, to jointly discuss the plan for high-quality development of the agricultural plastics industry.

At the conference presentation session on 29 October, Ms. Qin Lijie, Senior Engineer and Chief Expert of the Agricultural Film Branch of the China Agricultural Plastics Application Technology Society, delivered an excellent report titled "Overview and Prospects of Agricultural Film Development in China", in which she systematically reviewed the current technical status of functional greenhouse films in China and offered forward-looking prospects for the future development of the industry. In the report, the light stabilizer products of Tiangang Additives, as representatives of high-end domestic additives, were presented on the same stage and recommended alongside comparable products of the international chemical giant BASF, becoming the focus of attention for the whole audience.

Three technologies at or ahead of the international level, with domestic hindered amine light stabilizers contributing greatly

In her report, Qin Lijie pointed out that China has built a complete production system for functional greenhouse films, in which three production technologies are at or ahead of the international level. The first is thin-walled, aging-resistant greenhouse film, especially the thin acid-pesticide-resistant greenhouse film used under severe environmental conditions, which reflects the spirit and posture of China's hindered amine light stabilizers striding forward towards the world's advanced level. The second is wide-width PO-coated greenhouse film, whose width has reached 22 m, fully demonstrating the excellence of China's plastics machinery manufacturing technology and the innovation and balancing capability of processing enterprises' process technology. The third is the research and development of light-conversion film, whose production scale, breadth of farmland application and digital control capability all rank among the world's front runners, and China has gained the right to speak in this field.

The report particularly emphasized that selecting high-quality anti-aging agents, especially acid-pesticide-resistant light stabilizers, is the key path for the technical upgrading of China's functional film technology. In the comparison chart of "BASF series and Tiangang Additives products for the same application" shown in the report, the four major anti-aging solutions that Tiangang Additives has developed for different application environments correspond one-to-one with, and stand on a par with, the internationally leading products:

• Anti-aging solution for extremely harsh environments — core light stabilizer: XT-8, suitable for extreme environments;

• High-efficiency pesticide-resistant anti-aging solution — core light stabilizers: T-68 and T-69, suitable for severe environments;

• High-performance weathering protection solution — core light stabilizers: HS-625 and HS-627, suitable for harsh environments;

• Cost-effective long-lasting anti-aging solution — core light stabilizers: HS-944 and HS-962, suitable for general environments.

Solid field-proven data: Tiangang solutions stand up to the test

In her report, Qin Lijie cited the field application results of Tiangang products: the compound of Tiangang's acid-pesticide-resistant light stabilizer T-69 with HS-625 was tested in 2023 on thin-walled grape greenhouses in Xichang, Sichuan Province, where lime sulfur was sprayed in large quantities, and it was by no means inferior when compared with internationally leading NOR-type hindered amines; the test started in 2025 in Yunnan Province on greenhouses covering Gypsophila flowers has lasted for more than one and a half years, and the compounded application of Tiangang's NOR-type XT-8 with HS-625 has likewise performed excellently. Samples from greenhouses that have been covered for two years are now about to be collected, and the test results are worth looking forward to. The report pointed out that although China's fine chemical industry is still in the process of catching up, the gap with the advanced levels abroad is getting ever smaller.

 More than thirty years devoted to anti-aging, Tiangang safeguards the long service life of agricultural film with solid strength

As a national high-tech enterprise and a national-level specialized, refined, distinctive and innovative "little giant" enterprise that has devoted itself to the anti-aging field of polymer materials for more than thirty years, Tiangang Additives has three modern production and R&D bases in Daxing, Beijing, Cangzhou, Hebei and Gu'an, Hebei, with an annual capacity of more than 50,000 tonnes of integrated light stabilizers and various intermediates, making it a major integrated light stabilizer production base in Asia at present. The company's weathering laboratory has been awarded the titles of "China Light Industry Plastics Weathering Engineering Technology Research Center" and "China Plastics Products Weathering Technology Laboratory" by the China National Light Industry Council and the China Plastics Processing Industry Association respectively, and is the only key laboratory in China that has received both honors and focuses on research in the field of material weathering and anti-aging.

Relying on these platforms, Tiangang Additives has continued to tackle the key core technologies in the field of agricultural film additives, and the performance of many core products has reached the international advanced level. A new series of multifunctional low-basicity hindered amine light stabilizers has recently passed the evaluation of scientific and technological achievements, with the overall technology rated as internationally advanced. Proper selection of high-quality hindered amine light stabilizers can extend the service life of agricultural film from 1 year to 3~5 years, which not only greatly reduces the overall cost of agricultural production, but also provides solid technical support for green, low-carbon and sustainable agricultural development.

"Making plastics last longer" — Tiangang Additives will take this as its corporate mission, continue to increase investment in research and development, and join hands with colleagues across the industry to tackle common industry problems, injecting strong "Tiangang power" into promoting the high-quality development of China's agricultural film industry and helping modern agriculture improve quality and efficiency.