About us Offer contact History Environmental Protection Marketing and sales department Foreign Distributors Quality policy About us - History Interest in sands from the area of Synklina Tomaszowska began at the end of the 19th century. Numerous scientific studies on the geological structure come from this period. Detailed geological documentation was developed in the second half of the 20th century. Quartz sands in Grudzeń Las were already exploited in the 1930s. Initially, they were used in foundry in the raw state. The demand of heavy industry in the 70s of the twentieth century resulted in the fact that the Przedsiębiorstwo Dostaw Materiałów Odlewniczych in Tychy opened the "Grudzeń Las" Quartz Sand Mine in 1974 based on the Austrian hydroclassification technology. On June 1, 1998, independence was achieved by starting operations as a limited liability company. The strategic goal of the company is the production of the highest quality molding and glass sands, grades III and IV, based on new devices, modern machines and monitoring of a physico-chemical laboratory. The supplement is the production of filter litter, kaolin, technical sand, quartz flour, aggregates and dolomite flour. This goal is realized by an experienced and qualified staff, working in harmony with the natural environment. In 2005, we joined the elite group of entrepreneurs with a Quality Management System according to DIN EN ISO 9001: 2000. Grudzeń Las Sp. z o. o. Grudzeń Las 28, 26-332 Sławno near Opoczno, province. Łódzkie tel./fax +48 44 757 32 34, tel. +48 44 755 09 10, NIP 768 15 22 624, e-mail: sekretariat@grudzenlas.pl Company's capital 32 252 000 PLN Design and implementation: Usługi Informatyczne Lachowski Mateusz