Negeri Roadstone Sdn. Bhd. (NRSB) was incorporated in 1974 and has become the leading company in the quarry in Negeri Sembilan for the supply of high-quality aggregates and premix. Presently, NRSB has consistently been the preferred choice for a variety of companies with whom it has maintained commercial relationships. NRSB strives to support Negeri Sembilan’s economic development and infrastructure with the absolute finest resources attainable.