Fresh Batch of Celastrol 98% (CAS: 34157-83-0) Released — Ready for Global Shipment! November 6, 2025 Fresh Batch of Celastrol 98% Now Available November 6, 2025 Dear Valued Customers and Partners, We are delighted to announce that a new batch of Celastrol 98% (CAS: 34157-83-0) has been freshl...

Fresh Batch of Naringenin 98% Now AvailableOctober 14, 2025 Dear Valued Customers and Partners, We are pleased to announce that a new batch of Naringenin 98% (CAS: 480-41-1) has been freshly produced and is now available in stock at Nanjing Spring & Autumn Biological Engineering Co., Ltd. Our Na...

Dear Valued Customers and Partners, Thank you for your continuous trust and support to Nanjing Spring & Autumn Biological Engineering Co., Ltd. Please be informed that our company will be closed for the upcoming National Day and Mid-Autumn Festival Holiday from October 1st (Wednesday) to October...

FOR IMMEDIATE RELEASENanjing Spring & Autumn Biological Engineering Co., Ltd. ?? High-Purity Epicatechin: Power Your Formulations with Elite BioactivityWe proudly launch our new batch of Epicatechin ≥98% (CAS: 490-46-0), a clinically revered flavonoid extracted from Camellia si...

FOR IMMEDIATE RELEASENanjing Spring & Autumn Biological Engineering Co., Ltd. ?? High-Purity Tangeretin 98%: Unlock Advanced Bioactive Benefits We proudly announce the global release of our new batch of Tangeretin 98% (CAS: 481-53-8), a potent citrus flavonoid extracted from Citrus re...

FOR IMMEDIATE RELEASENanjing Spring & Autumn Biological Engineering Co., Ltd.  07/07/2025   ?? Premium Nobiletin 98%: Purity Meets Power We are thrilled to announce the successful outbound shipment of our latest batch of Nobiletin 98% (CAS: 478-01-3), a high-purity citr...

Nanjing, China  – Nanjing Spring & Autumn Biological Engineering Co., Ltd. is honored to announce its official recognition as a Science and Technology Small and Medium-sized Enterprise (SME) by Jiangsu Provincial authorities. This prestigious designation validates our innovative...

Nanjing, China  – Nanjing Spring & Autumn Biological Engineering Co., Ltd. proudly announces the successful attainment of Environmental Impact Assessment (EIA) certification, a critical milestone underscoring our dedication to sustainable operations and ecological responsibility. Thi...

Nanjing, China – Nanjing Spring & Autumn Biological Engineering Co., Ltd. is proud to announce the successful attainment of the ISO 9001:2015 Quality Management System certification. This milestone underscores our unwavering commitment to excellence, operational efficiency, and custo...

Nanjing, China – June 27, 2025 – Nanjing Spring & Autumn Biological Engineering Co., Ltd. is pleased to announce its successful participation at CPHI Shanghai, held from June 24th to 26th, 2025. Our team actively engaged with valued existing clients and welcomed numerous promising n...

NANJING, China – June 6, 2025 – Nanjing Spring & Autumn Biological Engineering Co., Ltd. is excited to announce its participation in the world's leading pharmaceutical trade event, CPHI Shanghai 2025. Mark your calendars! We will be exhibiting from June 24th...