Increased Competition Expected in Corn Flour Market, Analysts Say

Web Editor

January 26, 2026

a woman is holding a large piece of food in her hands and looking at it with a smile on her face, Ca

Background on Gruma and its Market Dominance

Gruma, the primary producer of corn flour in Mexico and owner of the popular Maseca brand, has long dominated the market. The company generates around 28% of its sales in Mexico, making it a crucial market for Gruma. However, recent developments may lead to increased competition in the long term.

Comisión Nacional Antimonopolio’s (CNA) Decision

The Comisión Nacional Antimonopolio (CNA) recently made a decision to eliminate barriers that previously restricted competition in the corn flour market. This move is seen as positive for Gruma, as it removes regulatory uncertainty.

Analysts’ Perspectives

According to Carlos Hernández, Director of Analysis at Vardez Capital, the CNA’s resolution is beneficial for Gruma because it eliminates the risk of stringent regulation in Mexico, a significant market for the company. Marcela Muñoz, an independent analyst, agrees that the CNA’s resolution was more lenient than initially proposed by the Federal Commission for Economic Competition (Cofece), which contemplated the sale of several plants.

Impact on Market Competition

Although Gruma will likely remain dominant, the removal of exclusive clauses and minimum purchase requirements will pave the way for increased competition in the medium term. New players are expected to enter the market, though the impact will be limited and gradual.

Previous Anti-Competitive Practices

The Cofece, now known as the CNA, initiated an investigation against Gruma in November 2022 due to consistent price hikes in corn flour, despite stable market conditions. Gruma was found to employ strategies that forced tortilla makers to purchase only its corn flour, providing them with machinery and financing under specific conditions.

CNA’s Resolution Details

The CNA’s preliminary October 2024 report suggested that Gruma sell five of its 18 Mexican plants. However, the final resolution announced on January 23 states that Gruma must give away rented machinery to tortilla makers without charge.

  • Tortillerias can return rented machinery early, purchase it based on depreciation value, or continue contracts without penalties.
  • Each machine can cost up to 300,000 pesos, as reported by CNA president Andrea Marván Saltiel.
  • The CNA will review all current and future Gruma contracts to prevent exclusive practices.
  • Gruma has six months to adjust its contracts and nine months to transfer machine ownership.
  • The CNA will monitor these measures for the next ten years.

Market and Consumer Context

Mexicans spend an average of 900 pesos per quarter on tortillas, consuming approximately 65 kilograms annually. Gruma controls nearly 70% of the corn flour market, as stated by Andrea Marván.

Key Questions and Answers

  • Q: How will the CNA’s decision impact Gruma? A: While Gruma will likely remain dominant, the decision will lead to increased competition in the medium term.
  • Q: What anti-competitive practices did Gruma employ? A: Gruma forced tortilla makers to purchase only its corn flour, providing them with machinery and financing under specific conditions.
  • Q: What will Gruma have to do according to the CNA’s resolution? A: Gruma must give away rented machinery to tortilla makers without charge and the CNA will review all current and future contracts to prevent exclusive practices.
  • Q: How significant is Gruma’s market dominance in Mexico? A: Gruma controls around 70% of the corn flour market in Mexico, a crucial market for the company.