MWP, established by David Macfarlane in 2016, provides specialist parts to the mining, quarrying and recycling industries across Australia, and has operations in Western Australia.

It is a leading and profitable national supplier of replacement parts used in crushing, milling, slurry pumps, mobile equipment and various consumable products such as castings.

Macfarlane will continue to lead MWP, which will retain its name, but will become a wholly owned subsidiary of MinRes' CSI Mining Services business.

MinRes will incorporate the MWP business into its Kwinana workshop as a first step towards establishing a fitting and services arm for the parts supplied by MWP.

The company said the terms of the acquisition were confidential, but not material to the company.

"As a leading provider in the mining services sector, with a significant footprint in crushing in particular, the acquisition of Mining Wear Parts is a logical addition to the Mineral Resources group of companies and will allow us to further vertically integrate our supply chain," MinRes chief operating officer Mike Grey said.

Grey said CSI would be a significant client of MWP but it would also look to expand MWP's service offering to its client base.

Macfarlane said the deal would allow MWP to morph into a larger business very quickly.

"Together, we will be able to grow Mining Wear Parts' presence in the repairs and service markets by bringing the best service people, backed by premium wear and spare parts, the most advanced workshops such as MRL's Kwinana facility and tooling for the best outcome for all of our clients," he said.

MinRes shares were up 3% to A$17.