Thatcher Group, Inc.

Hydrite Chemical Co., and Thatcher Company of California, Inc, are pleased to announce the formation of a
new joint venture. The joint venture, named Sacramento Ag Products, LLC (“Sac-Ag”), will focus on producing
thiosulfate chemistries for the West Coast agricultural market and bisulfites for industrial market applications.
Hydrite and Thatcher are both leading manufacturers of sulfur derivatives in the USA.

Sac-Ag will be producing product by November 2021 and is based in Sacramento, California.

Nate Ludtke, Executive Vice President – Sales and Business Development for Hydrite, commented, “We are
excited to announce the launch of this new joint venture. Thatcher is an ideal partner to help us expand our
reach in key markets on the West Coast; and it will allow us to service customers with local sourcing,
production, and storage.”

John Dinsenbacher, Sulfur Products Business Manager for Thatcher added, “Thatcher Company is pleased to
expand our sulfur production footprint to California allowing us to fully service the California Market. Hydrite
is the perfect partner for our new venture.”

About Hydrite Chemical Co.

Hydrite, a family-owned company established in 1929, is one of the largest independent providers of chemicals
and related services in the United States. Headquartered in Brookfield, Wisconsin, Hydrite has a network of
manufacturing facilities, warehouses, and laboratories located in Illinois, Wisconsin, Iowa, Indiana, California,
and Texas with nearly 1,000 employees in 25 states. Hydrite owns and operates a private fleet of over 255
units including tractors, van trailers, tankers, and railcars.

Hydrite offers expertise in chemical distribution and manufacturing, food and dairy sanitation, organic
processing, liquid sulfites, foam control, water treatment, and compliance management services. Hydrite has
a strong commitment to quality and customer responsiveness and offers superior products and innovative
solutions. To learn more, visit www.hydrite.com or call 262-792-1450.

About Thatcher Company

Thatcher Company, Inc., founded in 1967, is a privately held, diversified chemical manufacturer and distributor.
Thatcher’s main operation is in Salt Lake City, Utah, with plant facilitieslocated on 28 acres. The Thatcher Group
of Companies employs over 500 people across operations in California, Arizona, Idaho, Montana, Nevada, New
Mexico, Utah, Florida, and New York.

Thatcher serves the agriculture, pharmaceutical, mining, food processing, dairy, municipal and industrial water
treatment, construction, oil and gas, and power generation markets primarily in the United States, Canada,
Mexico, Europe, and the Pacific Rim.

To learn more, visit www.tchem.com or call 800-348-0034

Thatcher Transportation, Inc. is part of Thatcher Group and has a large fleet operating in 8 terminals in the
United States.

For more information, please visit our website www.sacagproducts.com