We are the Sintex Minerals
A global company specializing in the production, marketing, and distribution of high-performance industrial minerals.
A company with global reach delivering high-performance industrial mineral solutions.
Sintex Minerals is a global company specializing in the production, marketing, and distribution of high-performance ceramic proppants for the oil and gas industry, with a strategic presence in the world's leading markets.
As part of the Curimbaba Group, Sintex combines operational excellence, technological innovation, and total control of the production chain to deliver reliable and efficient solutions for hydraulic fracturing operations.
Strategic International Presence
Sintex Minerals operates through two international units that ensure proximity to customers and logistical agility:
This international structure allows Sintex Minerals to operate with global efficiency while maintaining high standards of quality, supply reliability, and specialized technical support.
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Sintex Minerals North America
Founded in 1993 and headquartered in Houston, Texas, it serves the North American market—the world's largest consumer of proppants—offering products with high mechanical strength and superior performance in extreme reservoir conditions.
Global Distribution Network
Integrated Production and Guaranteed Quality
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Ore Formulation
Since the Curimbaba Group owns and operates the mines in Brazil from which we extract our ore, we can control the chemical composition of the aluminum ore used to make our bauxite proppants. In our operations the ore is simultaneously mined from various deposits. Each deposit may have significant variations in mineralogy. Each truckload of ore is sampled for chemical composition determination upon arriving at the Mineração Curimbaba processing plant.
Knowing the chemical composition of the truckload, it is then directed to one of several large stockpiles where it is blended in proportions that will result in the precise mineralogy designed for use in manufacturing bauxite proppants. Using this approach allows us to maintain a high degree of consistency from ore mineralogy all the way to finished product performance. -
Manufacturing
Curimbaba Proppants are manufactured in a continuous process. Upon completion the proppant is packaged in bulk bags containing 3,300 lb. each. Each bag represents one lot and is assigned a unique lot number for reference. From each 3,300 lbs. lot a sample is collected and tested according to API RP60 procedures. The results of these tests are tabulated in a Quality Control Certificate for that particular lot of product. A copy of this certificate is then attached to the bulk bag containing that lot.
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Shipment
The bulk bags are then loaded into overseas shipping containers and transferred via ocean freighter to our clients. Regarding Sintex North America, the bulk bags are loaded into overseas shipping containers and transferred via ocean freighter to inventory at one of the Sintex Distribution Centers in US. Then, Loadout process starts.
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Loadout
To fill a bulk order of Curimbaba proppant from the one of the Sintex Distribution Centers in US, the bulk bags are individually drained into a hopper and screened once more as it is conveyed to a pneumatic trailer or sand box for shipment to the customer. As each bag is gravity fed onto the conveyor, a sample is collected from the falling stream using a sampling device (as per API RP-60).
All samples for a given truck are combined to form a composite sample representing the truckload. This composite sample is reduced and split using a sample splitter (as per API RP-60). One half of the reduced sample is sent along with the truck to the final destination for the customer. The other half of the reduced sample is retained in the Sintex laboratory at our Rosenberg Distribution Center and stored for a period of six months in case there is a request for further testing.
Commitment to Sustainability and Innovation
Sintex Minerals operates with a strong commitment to sustainability, safety, and environmental responsibility, adopting practices that minimize environmental impacts and promote the continuous development of the communities where it operates.
Constant investments in technology, innovation, and process improvement reinforce the company's position as a global benchmark in high-quality ceramic proppants.
Our Mission
To provide high-quality industrial minerals, fertilizers, and services with the effective utilization of our deposits and vertical integration of our processes, in order to guarantee the supply of our products and services for decades.
Our Vision
To be recognized as an International Group that adds value to its mineral deposits throughout its transformation chain to the point that avoids competition with its customers.
Our Values
To be recognized as an International Group that adds value to its mineral deposits throughout its transformation chain to the point that avoids competition with its customers.
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Focus on long-term sustainable results;
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Growth with low financial leverage;
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Value the entrepreneurial spirit of our employees;
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Always seek to preserve the built heritage, aiming to provide security to shareholders.