ITM Mining Ltd was established in April 1993, by ITM International SA and KNR Mining Limited. KNR had previously been formed by some of the senior management team in Angola of Roan Selection Trust International Limited (RST).

RST was the mining company of ITM International SA, responsible for most of Angola's diamond production between 1986 and 1992. The annual levels of production during this period, made Angola the world's 3rd largest producer of diamonds by value. The RST mining operations were centred around the Cuango river.
The management team of RST, now under KNR Mining Limited, brought to ITM Mining Ltd the specific mining expertise and professional experience capable of obtaining optimum production results, through intensive and cost efficient mining operations coupled with the skill in determining and specifying the most appropriate mine methods as well as mining and processing equipment.
ITM started its mining operations in June 1993, as a joint company between ITM International (51%) and KNR (49%). In February 1995, KNR acquired the shares of ITM International and became the sole corporate owner of ITM Mining Ltd.
ITM is proud of and values its activity in Angola, being currently, the longest operating mining company in the country. 

This fact, assumes particular importance in the history of the company, demonstrating its strong capacity to operate in adverse conditions, such as during the years of conflict, having attained profitable results with the lowest possible levels of investment.