Frequently Asked Questions About TWS Chemical

1. Who is TWS Chemical?

Shandong Tuowei Sheng Chemical Technology Co., Ltd. is a professional chemical supplier and exporter from China.

We specialize in supplying industrial solvents and chemical raw materials, including Isopropyl Alcohol (IPA), Dimethyl Formamide (DMF), Ethylene Glycol, and Ethyl Acetate.

With reliable supply channels, strict quality control, and professional export experience, we provide high-quality chemical products and services to customers worldwide.

2. What products does TWS Chemical supply?

TWS Chemical mainly supplies:

Isopropyl Alcohol (IPA)

Used in:

• Pharmaceutical industry
• Disinfectant production
• Electronics cleaning
• Coatings and inks

Dimethyl Formamide (DMF)

Used in:

• Pharmaceutical intermediates
• Synthetic fibers
• Polyurethane production
• Chemical synthesis

Ethylene Glycol (EG)

Used in:

• Antifreeze production
• Polyester manufacturing
• Textile industry
• Industrial applications

Ethyl Acetate

Used in:

• Paints and coatings
• Printing inks
• Adhesives
• Solvent applications

3. Are you a manufacturer or trading company?

TWS Chemical works with reliable chemical manufacturers and production partners in China.

We focus on international chemical supply, quality control, export services, and providing stable solutions for overseas customers.

4. What industries do your products serve?

Our chemical products are widely used in:

• Pharmaceutical industry
• Chemical manufacturing
• Paints and coatings
• Printing industry
• Plastics and polymers
• Textile industry
• Electronics industry
• Adhesive manufacturing

5. What quality documents can you provide?

For each shipment, we can provide necessary quality and safety documents, including:

• COA (Certificate of Analysis)
• MSDS (Material Safety Data Sheet)
• Product specifications
• Commercial invoice
• Packing list
• Other documents required by customers

6. What is the purity of your chemical products?

Our products meet industrial application requirements with reliable quality standards.

Typical specifications include:

• IPA: ≥99.98%
• DMF: ≥99.9%
• Ethylene Glycol: ≥99.8%
• Ethyl Acetate: ≥99.9%

Specific specifications can be provided according to customer requirements.

7. What packaging options do you provide?

We provide flexible packaging solutions according to different products and customer requirements.

Common packaging includes:

• 160kg / 200kg drums
• IBC tanks
• ISO tanks
• Bulk shipment

Customized packaging solutions are also available.

8. Do you export chemicals internationally?

Yes. TWS Chemical provides international chemical export services to customers worldwide.

We support:

• Export documentation
• Shipping arrangement
• Customs clearance assistance
• Professional customer communication

9. How do you ensure product quality?

We control quality through:

• Selecting reliable manufacturers
• Checking product specifications
• Reviewing quality documents
• Confirming shipment details before delivery

Our goal is to provide stable quality and reliable chemical supply.

10. What payment terms do you accept?

We usually support common international payment methods, including:

• T/T (Telegraphic Transfer)
• L/C (Letter of Credit)

Payment terms can be discussed according to order quantity and customer requirements.

11. Can you provide samples before bulk orders?

Yes. Sample availability depends on product type and shipping conditions.

Customers can contact us to discuss sample requirements before placing bulk orders.

12. How can I get a quotation from TWS Chemical?

Please send us your requirements, including:

• Product name
• Quantity
• Destination port
• Required specifications
• Packaging requirements

Our sales team will provide a competitive quotation and professional service.

13. Why choose TWS Chemical as your chemical supplier?

Customers choose TWS Chemical because of:

✓ Reliable chemical supply
✓ Competitive prices
✓ Stable quality
✓ Professional export service
✓ Fast communication
✓ Long-term cooperation mindset