SEMADRAG ni mtoa ya bidhaa na huduma kama vile aggregates kwa ajili ya kujenga na ujenzi,ocher,mchanga, dolomitic,earths, matumbawe,malighafi kwa ajili ya kazi za ujenzi na za umma,changarawe, pumice,changarawe, quartz,changarawe, filter-kitanda,changarawe, hadhi,jiwe, ponda,jiwe chippings na ballast,jiwe chippings, coated,mawe na boulders kwa ajili ya kudhibiti mafuriko na vikwazo vya pwani,sienna,umber,hoggin,mchanga na changarawe, mto,mchanga na changarawe, shimo au machimbo ya,mchanga, pwani,mchanga, madini ya kuzaa,mchanga, rangi ya,mchanga, feldspathic,mchanga, silika,mchanga, aliwaangamiza au hadhi,mchanga, jengo,mchanga, tak waliona,mchanga, kioo maamuzi,mchanga, ufinyanzi,mchanga, kinzani,machimbo ya taka,mchanga, mchanga-ulipuaji,mchanga, kusafisha poda,mchanga, filter-kitanda,mchanga, rangi kujaza,mchanga, inakabiliwa na,mchanga, kikromu,mchanga, olivine,mchanga, rutile,mchanga, zircon,mchanga, dressing, kwa nyanja ya michezo au wiki,mchanga, foundry,earths, kujaza na kufungiwa,earths, aliwaangamiza,mchanga na changarawe,mwepesi.