Charles City

Valero Charles City Ethanol Plant
1787 Quarry Road
Charles City, IA 50516
(641) 715-3000, main
(641) 715-3050, fax


Valero's Charles City ethanol plant is located near Charles City, Iowa, approximately 35 miles east of Mason City and 170 miles south of Minneapolis. The biorefinery sits on 225 acres and started ethanol production in April 2007. The facility uses a dry-grind production method and state-of-the-art technology to maintain industry-leading standards in production, safety, product quality and environmental stewardship. The Charles City plant annually processes approximately 49 million bushels of corn into approximately 140 million gallons of denatured ethanol and 368,000 tons of distillers grains co-products. The biorefinery employs more than 65 full-time personnel.

The entire kernel of corn is converted to ethanol or distillers grains. Ethanol is an environmentally friendly, high-octane renewable fuel produced by fermenting converted corn starch with yeast. It is used as a blending agent with gasoline. Distillers grains are the co-product left after the ethanol is removed from fermented corn mash, and are sold as a valuable livestock feed. Distillers grains are high in protein, fat, vitamins and minerals, making an excellent feed supplement for beef and dairy cattle, swine and poultry. The Charles City plant markets both dried distillers grains with solubles (DDGS) and modified (or wet) distillers grains with solubles (MDGS).


The plant timeline:
  • February 2004 – Community leaders began working on plans for the plant
  • August 2005 – Plans were announced for the plant in Floyd County
  • January 2006 – Announced purchase of the site near Charles City
  • March 2006 – Construction began
  • May 2006 – Groundbreaking celebrated
  • April 2007 – Startup activities began
  • August 2007 – Grand opening celebrated
  • April 2009 – Valero closed on purchase of the plant from VeraSun Energy

Awards & Honors

  • Earned the Valero Chairman’s Award for Renewables Plant Excellence for 2016, recognizing results across several areas: personnel and process safety, environmental performance, reliability, production and profitability, community involvement, and commercial and logistics performance

Community Activities

  • Pledged more than $29,000 to the local United Way for 2018, with additional donations and a company match projected to bring total plant contribution to approximately $48,000
  • Distributed $35,000 to area children's charities in 2017 from the Valero Texas Open and Benefit for Children, including to Bridges Mentoring Program (Mitchell County, Iowa), Avalon Center, Elma Early Childhood Center Inc., Family YMCA of Charles City, Floyd County Extension, Floyd County Fair Society, Ronald McDonald House Charities and TLC The Learning Center
  • Holds volunteer events throughout the year, logging more than 1,400 total hours annually

To Sell Corn
Jason Erdahl
Manager-Grains Procurement
Send Email
(641) 715-3019, or (866) 513-CORN(2676), toll-free

Penny Ruzicka
Commodities Assistant
Send Email
(641) 715-3020
(866) 513-CORN (2676), toll free

Please be advised that credit sale contracts (also known as price-later contracts) are not valid unless they are signed by the grain seller. Until a signature is provided, such contracts are considered cash contracts and must be cashed out within 30 days of corn delivery. If a grain seller fails to provide a signed contract to VGM within 20 days of corn delivery, VGM will proceed to cash out the contract.

To Purchase Distiller's Grains
Angela Nelson
Distillers Grain Sales Rep (local truck sales)
Send Email
(641) 715-3058, or (866) 513-CORN (2676), toll-free
(641) 715-3050, fax

Matt Prarat
Regional Manager-Ag Products
(210) 345-6404