Grain Processing Corporation

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About the Company

You’ll love working with us. For 80 years, our family business has provided great service and superior product quality, while turning the Midwest’s abundance into ingredients for the food, beverage, nutraceutical, personal care and industrial markets. Our plant-based, innovative solutions improve process efficiency, product functionality and quality. These solutions are backed by our experienced team of solvers, innovators, logistics experts and devoted customer service professionals.

OUR HISTORY
THE BEGINNING
Grain Processing Corporation (GPC) started a legacy of entrepreneurship, innovation, and unsurpassed quality when the company was founded February 11, 1943, by S.G. Stein and G.A. Kent, in Muscatine, Iowa. The company began as a government industrial alcohol plant, part of the World War II synthetic rubber program. When the war effort program ended, production shifted from industrial to beverage alcohol.

 

EXPANSION
In 1959, the company began a corn wet-milling operation, then expanded operations to produce high-quality, unmodified corn starch. The wet-milling operation was expanded once in 1962, twice in 1963, and several times since — allowing the introduction of acid-modified and oxidized starches for industrial use. During this time, GPC also produced its first sweeteners on an experimental basis.

In 1969, a line of hydrolyzed starch products, MALTRIN® maltodextrin and corn syrup solids, was introduced. Then in 1990, the third plant expansion in 10 years was announced to meet growing demand.

In 1996, GPC announced plans for a new corn wet milling plant in Washington, Indiana. Since completion, the plant has strengthened GPC’s ability to produce consistent quality products and to provide on-time performance.

In 1997, a Technology Development Center was constructed in Muscatine to develop manufacturing processes for new products, improve existing manufacturing processes, evaluate and recommend new technology, and provide samples for evaluations and trials.

In 2022 GPC further diversified with the acquisition of Natural Products Inc. in Grinnell, Iowa. Expanding our plant-based offerings to include chickpea and specialty soy products.

 

 

EYE ON THE FUTURE
In 2015, GPC invested $83 million in a new dryer house, significantly reducing emissions and promising a strong future for creating high-quality ingredients. Following that in 2020, GPC significantly increased its energy-efficient production of high-quality alcohol, bringing online the world’s largest distillery.

Grain Processing Corporation remains privately owned, with a clear vision for success in the future, that includes investment in people, facilities, technology and customer support services reflecting the overall commitment to quality.

Grain Processing Corporation (GPC) is a family-owned company, founded and headquartered in Muscatine, Iowa. Being a family-owned company allows us the freedom to focus on what counts — you — our customers. We work hard to satisfy our customers and bring them value.

At GPC, we have a deep history of innovation and a strong dedication to quality. Our ongoing investment in the finest people, facilities, technology and customer support services reflects the importance of our commitment to quality.

Corn is the mainstay of most of our diversified product line. And we use the entire kernel to produce our ingredients, so as not to squander any of this valuable resource. A wet-milling process efficiently separates the corn into its various components: starch, protein, fiber and germ. The starch fraction is used to produce our primary products, which are supplied to various industries, including food, beverage, pharmaceutical, nutraceutical and personal care. The remaining protein and fiber fractions are used to produce co-products and animal feed.

Grain Processing Corporation is a wholly-owned subsidiary of Kent Corporation, also based here in Muscatine, where the third generation of the Kent family holds leadership positions in the management of the company. Affiliated companies include Kent Nutrition Group, Kent Pet Group and Kent Precision Foods Group.

A SUSTAINABLE FUTURE
Sustainability is rooted in our culture, and protecting the environment is an important aspect of our efforts. As a manufacturer of renewable, corn-based products, we believe in responsible resource management, starting with product innovation and moving all the way through to operational efficiency.​

BEYOND THE BASICS
Our holistic approach to sustainability focuses on three pillars:

Environmental
Social
Economic
To be effective, we function in a sustainable manner relative to our communities, our customers, employees, environment and resources, because depleting any of these highly valued assets would endanger the others.

ENVIRONMENTAL MISSION STATEMENT
GPC is dedicated to environmental operations that foster a sustainable future and lead to improvements in the communities where we do business. GPC will continually maintain compliance with all local, state, and federal environmental regulations and will strive to reduce our impact on the environment.

REDUCE, RENEW, REUSE
We work to minimize our impact on Earth’s resources. We embrace responsible stewardship and conservation of resources through technologies and processes for reducing, recycling, recovering or reusing resources. Here’s a look at some of our continuous improvement efforts to preserve our most precious natural resources – air, land, and water.

Emissions reduced by 93% at our Muscatine grain processing plant.
Facilities run entirely on natural gas.
Entire corn kernel is used to make our high-quality products, thereby reducing waste.
Corn sourced from local Midwestern farms.
Since 2015, reduced amount of solid waste going to landfill by 90%.
Additional wastes diverted from burial by improving plant recycling.
Energy use reduced by more than 10-million kilowatt hours over a one-year period.
Ongoing manufacturing/production facility improvements to reduce emissions and energy/water use.

 

PROUD SEDEX MEMBER
Sedex is one of the world’s leading ethical trade service providers, working to improve working conditions in global supply chains. As a Sedex member we are committed to being a responsible business, sourcing responsibly, and improving ethical standards and working conditions within the supply chain.

EXPLORE CORN PRODUCTION + THE ENVIRONMENT
Significant improvements in sustainability and productivity have already taken place in corn production. Farmers are now producing more corn, using less land and fewer inputs.

FOOD + BEVERAGE
Our specialty carbohydrates help product developers solve taste, texture and functionality challenges in a myriad of applications. Moisture management, bulking, binding, coating and carrying are just some of the many attributes GPC ingredients provide.

FIND YOUR SOLUTION
MARKET INSIGHT
HEALTH + WELLNESS
Health and wellness is an established trend in food and beverages. At the same time, convenience and maintaining a pleasurable eating experience are also important to consumers. Products not only need to be nutritious – they must taste good and fit on-the-go lifestyles.

GPC ADVANTAGE
QUALITY FUNCTIONAL INGREDIENTS
We make quality food and beverage products better by managing moisture, enhancing mouthfeel and optimizing texture with our extensive line of functional ingredients.

FOOD + BEVERAGE SOLUTIONS

MALTODEXTRINS + SYRUP SOLIDS
Our premium MALTRIN® maltodextrins and syrup solids are neutral-flavored, white carbohydrate powders and are available with a number of functional properties.

Improved end-product quality
Gluten-Free
Non-GMO available
100% Tapioca source also available

CO-PRODUCTS
Our co-products are made through a wet-milling/distilling process used to separate corn into various components – starches, protein and fiber. From this we produce:

Corn gluten meal
Corn gluten feed (dry pellets, loose form, wet feeds)
Hexane-free crude corn oil
Whole kernel corn germ
Non-GMO Project Verified certified Loose Corn Gluten Feed and Corn Gluten Meal
FIND YOUR SOLUTION

 

 

MARKET INSIGHT
DEMAND FOR QUALITY
People want their pets to eat in the same manner they do. This has led to interest in economical proteins and plant-based foods. GPC provides ingredients that meet these requirements.

GPC ADVANTAGE
CUSTOMIZED SOLUTIONS
With a reputation for excellence as a leading supplier of animal and pet nutrition, crude corn oil and corn germ in addition and other feed ingredients, we cater to our customer’s needs by providing products customized to their exact specifications.

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