Rock Hard Cement bids to block import quota Sunday 3 January 2021 Employee Jose Lopez throws out a bag of Rock Hard cement to mix at at Second Crossing Hardware, Bon Air Gardens, Arouca on Saturday. PHOTO BY AYANNA KINSALE - Cement importer, Rock Hard Cement is seeking to block the Ministry of Trade and Industry from imposing a ceiling of 75,000 tonnes of cement that could be imported in the country. In a telephone interview with Sunday Newsday, Rock Hard’s local distributor Motilal Rahmit and Sons, managing director Ryan Ramhit said the ministry's new policy, especially increased tariffs and duties, have forced the company to close its operations for one month from Monday.