Raw material is one of the key factors to decide quality of products. VMI is privileged to obtain the marble lumps originated from best quarries in Vietnam in Mong Son area and Luc Yen District, Yen Bai province with huge reserve. Our raw materials are thoroughly selected at quarries and again re-selected strictly at factory. As a result, products of VMI are always of high purity with whiteness is above 98%, brightness is above 96%, content of Silica and other minerals is very small.