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ORGANIC FERTILIZERS
We have developed a complete line of organic inputs, soil amendments and insect repellents for farmers, blenders, formulators and distributors.
SUPPLIES FOR ORGANIC AGRICULTURE
FORMULATORS AND FARMERS
WORLDWIDE TRUST US
MYCSA AG is part of MYCSA Group, a provider established in Brownsville, TX, a global leader in the market for organic inputs, raw materials, solutions, and other products for the organic agriculture industry.
For years we have had materials listed and approved by OMRI.
Formulators and farmers from all over the world prefer our products for their quality, competitive prices, excellent service and the environmental commitment we share.
We can send our products quickly and directly to any part of the world with the confidence that our customers will receive the products in optimal conditions.
Our Story
MYCSA AG was founded in 2004 with the mission of transforming the agricultural input industry through organic raw materials and natural repellents that help growers certify their crops as organic while contributing to a more sustainable environmental footprint.
Our story began with the vision of Federico and María Cristina Casillas, founders of Fertichem in Mexico City. In 2008, MYCSA AG established operations in Brownsville, marking the beginning of the group’s international expansion.
Today, MYCSA AG is part of MYCSA GROUP, a global organization with operations in multiple countries. María Cristina Casillas continues to lead the company, carrying forward a legacy built on innovation, sustainability, and long-term growth.

















