The investment is geared at increasing the annual production of the bottling Company from 100-million bottles to 130-million.
Central Glass Industries Managing Director James Karegi said the expansion will enable the company to meet the growing demand of its products.
The exercise, which will include the installation of a Glass forming equipment, is expected to take two and a half months to complete.
The companys Operations manager Shadrack Karemu said the refurbishment will cut down energy costs and improve utilization by 20%.
Central Glass currently exports 50% of its products to Countries in East Africa, the Great Lakes Region and the Indian Ocean Islands.
The company is also enjoying good business in Cote DIvoire and Angola.