About Us

Our Company 

Since 2001, Wintersun has been an industry leader supplying quality ingredients at competitive prices. Headquartered in Ontario, Southern California, Wintersun is dedicated to making sure customer expectations continue to be exceeded. Committed to being a reliable, customer focused source of ingredients, Wintersun believes in success through strong relationships with our clients and high-quality manufacturers. Wintersun is a proud member of the National Association of Chemical Distributors (NACD), and is listed in the California Unified Certification Program (CUCP) database of certified DBEs under the chemical distributor category. 

Our Websites 

Our e-Commerce website www.wintersunchemical.com is designed to serve you who want to purchase our products online. Also, please visit our company's website at www.wintersunchem.com to know more products supplied by our company.

For large quantity or any other concern, please feel free to call, email, or fax our customer service. 
Phone: (800) 930-1688  
Email: sales@wintersunchem.com
Fax: (909) 947-1788


At Wintersun, we are committed to excellence.  From manufacturing to packaging and delivery, we provide quality, reliability and the highest degree of customer service.  Our scope of service is structured around the unique needs of each client. Our mission is to provide consistent and reliable sources of chemicals along with exceptional customer service.


In addition to Wintersun-brand chemicals, we have established enduring partnerships with many worldwide suppliers to provide an ever wider selection of products.  At Wintersun, we believe in success through strong relationships with our clients and high quality manufacturers.

Safety Certificate & Awards

Wintersun Chemical is a proud member of National Association of Chemical Distributors (NACD) which is an international association whose members have the highest standards in environmental safety, performance, and security.  A regular third party audit and verification is required to each member to make sure the Responsible Distribution Codes are followed covering from safe handling, storage and transportation of chemicals, and regulation compliance to community outreach, internal auditing and product stewardship.

In addition, Wintersun received a CHP reward indicating outstanding achievement in compliance with the laws of the warehouse and the road.

Our Industries

On our website, www.wintersunchem.com,  you will get diverse selection of chemicals used in the development and manufacturing industries.

  • Agriculture Chemicals
  • Animal Feed Ingredients
  • Bee Keeping Chemicals
  • Cosmetics & Personal Care Chemicals
  • Food, Nutrition, and Pharmaceutical Ingredients
  • Household, Institutional,& Industrial cleaning Chemicals (HI & I)
  • Metal Finishing and Painting Compounds
  • Pool & Spa Chemicals
  • Remediation & Water Treatment
  • Textile Chemicals

Why Wintersun?

  • DEA certified
  • NACD member
  • Global Sourcing
  • Performance you can trust
  • Immediate shipment
  • Experienced Staff
  • Expansive Product Line
    (Liquid/Dry; Organic/Inorganic; Commodity/Specialty)

Wintersun Holiday Calendar

  • New Year’s Day                  January 1
  • Memorial Day                    Last Monday in May
  • Independence Day             July 4
  • Labor Day                         First Monday in September
  • Thanksgiving Day              4th Thursday in November
  • Christmas Day                   December 25

* When a holiday falls on a Saturday, it is usually observed on the preceding Friday. When the holiday falls on a Sunday, it is usually observed on the following Monday.

Organizations and Affiliations

  NACD Certificate of Completion 2021



 DBE Certificate  |  CHP Certificate