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Professional Manufacturer of Fumaric Acid & Organic Trace Elements

Zhejiang Dongda Biotechnology Co., Ltd. – trusted supplier of high-purity acidifiers, ferrous fumarate, complex carbon sources, and water treatment agents since 1995.

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About Zhejiang Dongda Biotechnology

Zhejiang Dongda Biotechnology Co., Ltd. (formerly Shengzhou Dongda Chemical Co., Ltd.) was founded in 1995 and is located in Shengzhou, Zhejiang — the hometown of Yue Opera and renowned for its tea and ties. Nestled near Hangzhou, Ningbo, and Yiwu, our facility benefits from excellent transportation access via the Shangsan and Jinyong Expressways and National Highway 104.

Our modern plant spans 9,500 square meters across 1.99 hectares and serves over 1,000 customers globally. With an annual throughput of 15,000 tons, we are committed to delivering high-purity, affordable chemical solutions for feed, industrial, and water treatment applications.

1995
Founded
9500
m² Plant Area
15,000
Tons Annual Output
1000+
Global Customers
Zhejiang Dongda Biotechnology Facility

Our Product Categories

We specialize in high-quality chemical products for diverse industrial, agricultural, and water treatment applications.

Acidifiers

Including fumaric acid, calcium formate, and sodium acetate — essential for feed preservation and pH control.

Acidifiers

Organic Trace Elements

High-bioavailability compounds like ferrous fumarate and glycine iron for animal nutrition.

Organic Trace Elements

Water Treatment Agents

Sodium acetate and other agents for wastewater treatment and biological nutrient removal.

Water Treatment Agents

Product Center

Fumaric Acid

Fumaric Acid

Feed and industrial grade, high purity, used in unsaturated polyester resins, food preservation, and animal feed.

Ferrous Fumarate

Ferrous Fumarate

Organic iron supplement with high bioavailability, ideal for animal nutrition and feed additives.

Glycine Iron

Glycine Iron

Chelated iron source for improved absorption in livestock and poultry feed formulations.

Calcium Formate

Calcium Formate

Used as a preservative and acidifier in animal feed, especially in swine and poultry diets.

Potassium Dicarboxylate

Potassium Dicarboxylate

Buffering agent and preservative in feed and food applications, enhances shelf life.

Sodium Acetate

Sodium Acetate (Solid & Liquid)

Used in water treatment for denitrification, also as a food preservative and pH regulator.

Maleic Acid

Maleic Acid

Intermediate in chemical synthesis, used in resins, polymers, and pharmaceuticals.

Complex Carbon Source

Complex Carbon Source

Specialized formulations for biological wastewater treatment and microbial growth enhancement.

Why Choose Dongda Chemical?

High Purity

Our fumaric acid and derivatives meet strict industrial and feed-grade standards.

Affordable Pricing

Competitive pricing without compromising on quality or consistency.

Global Reach

Serving over 1,000 customers worldwide with reliable logistics and support.

Trusted Since 1995

Over 25 years of experience in chemical manufacturing and innovation.

1995
Year Founded
9,500
m² Manufacturing Area
15,000
Tons Annual Output
1,000+
Satisfied Customers

Latest News

Fumaric Acid News
2021-09-13

Application of Industrial Fumaric Acid

Used in unsaturated polyester resin, organic synthesis, medicine, and preservatives.

Resin Production
2021-09-13

What Resin Can Fumaric Acid Produce?

Mainly used in unsaturated polyester resin and other industrial polymers.

Market Outlook
2021-09-13

Fumaric Acid Market Competition

Growing demand in food, pharmaceutical, and industrial sectors.

Get in Touch

For inquiries about our products or partnerships, please visit our official website.

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