Initially started with manufacturing of Tripoli powder in 1893. For all this time the Tierras Industriales Herran y Diez, S.A. company has built a reputation based on a simple mission: to excel in everything we do.
At the core of this commitment has been a single minded dedication to do what they know best – processing the mineral to Tripoli. We export successfully all over the world to more than 20 different countries.
We will strive to achieve excellence in everything we do as a company and become a world class organisation will provide products and services that will meet fully or exceed customer's expectations at competitive cost and we are committed to continuous improvement in every aspect of our organisation.
Quality and enviorement
We are conscious that the quality is the pillar of our company. We extract the Tripoli of the best sites doing periodic soundings and all the products that we made pass a strict control of quality in our laboratory. In the same way, we took care of environment the possible maximum. We do not produce any type of polluting spill, we used friend-enviorementaly technologies and heat threated pallets.