Quantum Steels Nigeria Limited lists its Lagos corporate office on Kudirat Abiola Way and its factory at Km 16 Sagamu–Ikorodu Road, Ogijo, with the official site publishing both addresses, a corporate switchboard, a factory helpline and active sales email; company materials note accreditation by the Standards Organisation of Nigeria for rebars to NIS 117/BS 4449 and describe integrated facilities—from furnaces and CCM billet casting to rolling mills and an oxygen plant—that began operations in 2009 to serve national construction demand.