On September 20, 2017 took place a ceremonial promulgation for the Best Manufacturers of Construction in 2016. In this competition, company Kámen a písek, spol. s r.o. gained the prize of the Union of Building Entrepreneurs in the Czech Republik and has passed the narrower category of competition to 250 employees. This award firma acquired especially thanks to deliveries of aggregate to the 4th section of the D3 motorway, when the Ševětín stone quarry was supplied in 650 to 650,000 tons during the year 2016.