Guysure Aggregate and Sand Inc. (Guysure ASI) is based in Guyana and is a proud subsidiary of state-owned mining company N.V. Grasshopper Aluminum Company (N.V. Grassalco), based in Suriname. De core activities of Guysure ASI are distribution/sales of high-quality aggregate, rental of office and storage facilities and professional handling (also in partnership) of ocean freight, both for clients and other interested parties. Our mission is to contribute to the economic and infrastructural development of Guyana by providing high quality building material, rental services and related products, with a strong commitment to service, reliability and customer satisfaction.