Twin International Co., Limited | Water Treatment Chemicals & Chemical Raw Materials Supplier

About Twin International

Twin International Co., Limited is a modern enterprise specializing in the production, sale, export, and trade of high-quality chemical products. Located in the heart of Shanghai — China’s financial, shipping, and trade center — our office is situated in the Pudong New Area, Jinqiao Town, offering seamless access to international logistics hubs including Pudong International Airport and Waigaoqiao Container Terminals.

With independent import and export rights, Twin International has built a strong global presence, focusing on delivering reliable chemical solutions across industries. We are committed to quality, innovation, and service, guided by the principle: "Quality for reputation, service for future."

100+

Global Clients

15+

Years Experience

30+

Products

Our Products

We specialize in a wide range of high-purity chemical products for water treatment, pharmaceuticals, food preservation, and industrial applications.

Sodium Bromide

Industrial & Photographic Grade | CAS# 7647-15-6

• High purity for industrial use
• Used in photography and drilling fluids
• Stable aqueous solutions

Aluminum Chlorohydrate (Liquid)

50% Solution | Water Treatment Grade

• For drinking water purification
• Effective coagulant
• Low residue formation

Aluminum Chlorohydrate (Solid)

Cosmetic Grade

• Used in antiperspirants
• Daily-chem grade purity
• Non-irritating formulation

Sodium Monofluorophosphate (SMFP)

Toothpaste Fluoride Additive

• Prevents dental caries
• Stable in formulations
• Food/pharma compliant

Polyvinylpyrrolidone (PVP)

K30, K12, K15, K17, K25, K60, K90

• Pharmaceutical & industrial grades
• Binder, stabilizer, thickener
• Water-soluble polymer

Ammonium Bromide

99% Industrial Grade | CAS# 12124-97-9

• High purity crystalline solid
• Used in photography and synthesis
• Stable under normal conditions

Potassium Bromide (KBr)

99.5% Pure | Pharmaceutical Grade

• Used in medicine preparation
• IR spectroscopy standard
• Low hygroscopicity

Sodium Benzoate

Food Grade | Preservative Additive

• Widely used food preservative
• Inhibits microbial growth
• FDA & EU compliant

Hydrocortisone

Pharmaceutical Intermediate

• Anti-inflammatory agent
• API raw material
• High purity crystalline form

PBTC

Phosphonobutane Tricarboxylic Acid

• Powerful scale inhibitor
• Used in cooling water systems
• Stable at high temperatures

AA/AMPS

Acrylic Acid / AMPS Copolymer

• Dispersant & scale inhibitor
• Effective in high hardness water
• Biodegradable formulation

HEDP.Na2

Sodium Salt of HEDP

• Chelating agent for water treatment
• Prevents scale and corrosion
• Compatible with chlorine

Why Choose Twin International?

We deliver excellence through innovation, quality, and global service.

Quality Assurance

All products undergo strict quality control and meet international standards including ISO, FDA, and EU regulations.

Fast Global Delivery

Strategic location in Shanghai enables rapid export via air and sea. We serve clients in over 50 countries with reliable logistics.

Customer-Centric Service

We build long-term partnerships through responsive communication, technical support, and customized solutions.

Frequently Asked Questions

What are your main product categories?

Our core product lines include water treatment chemicals, chemical raw materials, food additives, and pharmaceutical intermediates such as Aluminum Chlorohydrate (ACH), PVP, SMFP, Bromides, and HEDP derivatives.

Do you offer samples?

Yes, we provide product samples upon request for qualified buyers. Please contact us directly to arrange sample shipment.

What certifications do you have?

Our products comply with international standards. We provide COA, MSDS, and other documentation. Specific certifications depend on the product and regulatory requirements of the destination country.

Can you customize formulations?

Yes, we offer customization for concentration, packaging, and specifications based on client needs. Our R&D team supports tailored solutions.

What is your minimum order quantity (MOQ)?

MOQ varies by product. For most chemicals, it ranges from 25kg to 1 metric ton. Contact us for specific product MOQs and pricing.

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Global Supplier of High-Purity Chemicals