Umzimkhulu Industrial Holdings (Pty) Ltd, trading as Rossmin is an open cast mining operation, mining a high quality limestone deposit near Port Shepstone known as the Marble Delta. Rossmin was established in 2010 to mine calcitic and dolomitic limestone. Rossmin uses the most advanced systems to process the minerals to produce products of a high quality.

Rossmin has incorporated the local community as shareholders in the business and through this initiative and the Rossmin Social and Labour plan, Rossmin is contributing to uplifting previously disadvantaged people in the community.

Today Rossmin is a fully operational business and has its customers, staff and various stakeholders at the core of its culture.