Engineering products supplier Integrated Engineering Services (IES) has been responsible for servicing pumps specialist Integrated Pump Technology’s growing customer base in the Zambian mining sector since January this year. Accounting for about 30% of the submersible pumps market in the country, Integrated Pump Technology GM Jordan Marsh says the company’s installed base has started to increase considerably over the past year, as the mining industry has become more attractive to investors under the leadership of newly elected President Hakainde Hichilema.