Tassullo was founded in 1909 as a miners' cooperative, with the aim of creating opportunities for emplyment in the area, in a challengin period characterised by migration, exploiting the mineral deposits of Scaglia Rossa Trentina. The company is currently based in the area of its first mine, which dates right back to 1909.
In the period immediately following the Second World War, Tassullo became a joint stock company, thanks to growing demand for building products and post-war reconstruction. The company expanded its activity, building new furnaces to bake the Natural Hydraulic Lime and acquiring new quarries.
The 1970s also saw the acquisition of the Società Anauniense Miniera San Romedio, which originally mined black schist, a particular form of sedimentary rock that is rich in aquatic fossil deposits and is a source of ichthyol, a substance with considerable antiseptic properties. The rising popularity of penicillin and other pharmaceutical products had caused a fall in the demand for ichthyol, and the mine was therefore converted to allow extraction of Scaglia Rossa Trentina, a highly desirable marl with a characteristic perfect balance of clay and limestone. The first industrial premixing plant for the production of plaster and mortar for the building sector was also constructed in the 1970s.
At the beginning of the 2000s, the company invested in a research project that confirmed the geological uniqueness of the old San Romedio Mine site, which lay above hundreds of hectares of the purest Dolomite rock. This marked the beginning of the deep excavation of this uncontaminated rock that, mixed as an inert substance with Natural Hydraulic Lime, characterises the high-performance range of Tassullo products.
In line with the brand's values, starting in 2013 the company became the protagonist of a unique space regeneration project: the extraction of Dolomia is, in fact, designed from a circular economy perspective to create custom hypogeal spaces suitable for technological and commercial activities.
The period of economic crisis hit the Tassullo group heavily and had a profound influence on the story of the company.
It will be 2018 that will bring new blood with innovative development projects in collaboration with Universities and Research Centers, following the acquisition of the company by a solid group of investors, whose majority partner has more than 60 years of experience just in the construction industry. The company Miniera San Romedio Srl is established, which operates on the market under the Tassullo brand, now synonymous with innovation in the development of technical products and systems for construction.