Cornerstone Aggregates Inc. is a trusted Guyanese supplier of high-quality construction and industrial materials, committed to supporting national development. Our core product line—¾”, ½”, crusher run, sand, and loam—forms the backbone of infrastructure, residential, and commercial projects across the country. Complementing this, we provide integrated trucking and logistics services to guarantee reliable, on-time delivery to any site. Recognizing the critical role of machinery in construction and energy, our specialized lubricants division delivers premium greases and oils designed for durability and performance. By combining material supply, 

logistics expertise, and equipment maintenance solutions, Cornerstone Aggregates Inc. stands as a comprehensive partner for contractors and developers driving Guyana’s future. We remain dedicated to building with reliability, efficiency, and innovation at every stage.