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28 3 月

News

Ammonium Sulfate (Analytical Reagent Grade) – Premium Lab Grade for Precision Analysis & Biochemical Research

发布者 admin@qq.com

2026年5月21日

Published for: Laboratory Chemicals, Research & Academic Procurement, Industrial QC ...

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03 9 月

News

Ammonium Sulfate (Electronic Grade) – Ultra-High Purity Chemical for Semiconductor & Microelectronics Manufacturing

发布者 admin@qq.com

2026年5月21日

Published for: Semiconductor Factories, Electronic Material Procurement, Wafer Processing Enterprise...

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03 9 月

News

Ammonium Sulfate (Food Grade) – Safe Food Additive for Baking, Brewing & Food Fermentation

发布者 admin@qq.com

2026年5月21日

Published for: Food Manufacturers, Bakery & Beverage Factories, Food Additive Distributors Fo...

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23 7 月

News

Ammonium Sulfate (Pharmacopoeia Grade) – USP/BP/EP/ChP Standard Excipient for Pharmaceutical & Biopharma Industry

发布者 admin@qq.com

2026年5月21日

Published for: Pharmaceutical Factories, Biopharmaceutical Enterprises, Vaccine & Preparation Ma...

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What They Say About Us

We’ve worked with Shandong Costone for over three years. Their food grade magnesium sulfate and zinc sulfate have stable quality, complete test reports and always on-time shipment. Definitely a trustworthy supplier from China.

David Miller - USA.

We bought bulk ammonium sulfate and sodium carbonate from Shandong Costone. The packaging is perfect with no damp damage. Good price and professional after-sales support. Highly recommend to all buyers.

Ahmed Hassan - SA.

Very professional chemical manufacturer. All products like copper sulfate, manganese sulfate meet international standards. Fast reply and great technical support. We will maintain long-term cooperation.

Lisa Tan - MY.