Athi River Marble and Granite Ltd, a Nairobi-based firm, has applied for exclusive rights to prospect for granite in Machakos and Makueni counties.
Acting Commissioner of Mines and Geology Moses Njeru in a Kenya Gazette notice said the company will prospect for the precious construction stone over areas stretching 15 square kilometres and 20 square kilometres in Machakos and Makueni respectively.
Sources intimated that the firm is associated with Machakos Senator Johnson Muthama.
"..the said area of land is therefore excluded from prospecting and or mining except as regards any prospecting and mining rights granted in respect of the area ... before the date of this notice which are subsisting or any right of renewal thereof," Njeru said in the gazette notice published last Friday, citing section 7(1) (d) of the Mining Act.
Any objection to the exclusive licence should reach his office within 30 days from Friday, he directed.
The stone is mostly used for interiors in residential and commercial buildings. Granite is favoured for use on counter tops owing to its resistant to scratching, cracking and staining.
The residential construction sector has especially gained momentum as demand for homes grows in Nairobi and neighbouring Machakos, Kiambu and Kajiado counties.