The Galole Multi-Purpose Fruit Processing Plant is in dire need of raw materials to operate at maximum capacity.
Coast Development Authority Chairman Kazungu Kambi says the current production capacity is having a toll on machines even after 60 million shillings was spent to revive the plant.
Famers in the region are now being urged to expand their mango plantations to sustain the facility.
In June last year, the national government allocated Ksh 145 million for the revival of the Galole Multi-Purpose Fruit Processing Plant.
Plans are now underway to increase capacity even as the facility seeks to produce 12,000 tons of pulp per year, compared to 2,880 tones previously.
Speaking at the factory in Boji area of Galole constituency during a tour Managing Director Mohamed Keinan said authority had already purchased and installed a new mango pulping machine with the ability to crush 1.5 metric tonnes of mangoes per hour to replace the manual one that stalled less than one year after being commissioned in 2014.
Keinan said the state agency would spend more money in the development of a 200-acre parcel of land where it intends to develop an orchard with a view to producing enough fruits to keep the plant running non-stop.
It was also building a warehouse and other facilities at the factory site, he added.
Kambi says CDA will also assist farmers to produce more mangoes and other fruits as well as build a storage facility for mangoes so that the machines operate throughout the year.
In the past, the closure of the plant saw about 30,000 farmers left at the mercy of exploitative middlemen who bought their mangoes at Sh2 per fruit, sending most growers to street mango vending and juice blending.