Uawithya is Thailand long established Quarry Services company. We specialise in offering the most comprehensive services in Drilling, Blasting Crushing and Hauling Uawithya is a Distributor for world Class Quarry Equipment as well as having our own Explosives Manufacturing Company ; Chai Explosives. Our comprehensive service teams, S1 and Blast Pro proactively support all of your quarry machinery and Explosives requirement.