PUB-LTD Is Gilsonite rock mine owner. Also we provide powder in various mesh size and lump with application including FLC additives in oil well drilling mud. It also use in filtrate control as hole stabilizer for high temperature high pressure oil well HTHP, HTLP. As bitumen modifier uses to mix with asphalt to improve performance and stability of bitumen. The gilsonite is leading in roof coating, building product coating and road sealcoat crack sealer suppliers.