Afrimat, which supplies industrial minerals and construction materials, on Thursday reported a 25.3% rise in headline earnings per share (HEPS) to 95.2c in the six months to August from the year-earlier period.
The company said it its results statement on Thursday that the double-digit growth in HEPS was due to strong performance in its mineral producing operations.
The company consists of a mining and aggregates division, which houses the recently acquired Glen Douglas and the Clinker Group, and a concrete-based products unit.
"This pleasing performance was further supported by improved efficiencies, cost reduction and the disposal of marginal businesses," CE Andries van Heerden said in a statement.
Revenue was up 15% to R1.2bn from the year-earlier period and net profit lifted 27% to R139.3m.
The small-cap company has endeared itself to investors, with the share price spiking from lows of about R3 in 2010 to R27 currently, which values the company at about R4bn.