Hengcheng Pharmaceutical Group Huainan Co., Ltd., located in the Biomedical Science and Technology Park of Huainan Economic and Technological Development Zone, Anhui Province, is a comprehensive chemical pharmaceutical enterprise primarily engaged in the production of synthetic active pharmaceutical ingredients (APIs), as well as tablets, capsules, APIs, pharmaceutical intermediates, and niclosamide series pesticide products. The company was established in 1970 and was formerly known as Huainan Third Pharmaceutical Factory.

Adhering to the corporate spirit of "Perseverance, Integrity, Self-improvement, and Innovation," the company relies on high-tech products, strengthens fundamental management, and actively explores domestic and international markets, achieving remarkable results. While attaining strong economic performance, the company has also received recognition and encouragement from various government departments. It has been honored with titles such as a national "High-Tech Enterprise," Anhui Province Innovative Pilot Enterprise, and Huainan Advanced Enterprise.

The company's main products include: ① APIs: Niclosamide, Mesalazine, Paracetamol, Metronidazole, Phenytoin Sodium, Aspirin, etc.; ② Solid dosage forms: Mesalazine Enteric-Coated Tablets, Nimesulide Capsules, Praziquantel Tablets, Anti-TB Drug Combination Packs, etc.; ③ Niclosamide series pesticide products: Niclosamide Piperazine Salt, Niclosamide Ethanolamine Salt, 70% Niclosamide Wettable Powder, 50% Niclosamide Ethanolamine Salt Wettable Powder, 4% Niclosamide Ethanolamine Salt Powder, etc. Among these, Niclosamide and Mesalazine are national key new products, Paracetamol is a famous brand product of Anhui Province, Nimesulide Capsules are a high-tech product of Anhui Province, and 50% Niclosamide Ethanolamine Salt Wettable Powder is a well-known product of Huainan City.