Oman's Haya Water plans to increase production at its environment-friendly compost fertiliser plant, a report said.

The plant will produce 400,000 bags of Kala compost, compared to 381,412 bags in 2015.

The company produces three sizes of Kala compost - 10 litres, 20 litres, 50 litres, a Times of Oman report quoting a company statement said.

The unit converts the sediment generated from wastewater treatment (sludge) and mixes it with other organic materials such as remnants of trees and green grass using an open-air piles technology to produce ‘Kala’ with high quality specifications that are identical to international environmental specifications.

Kala is widely used in farms and home gardens, the report said.

The company said that it had achieved sales of 100 per cent of the production last year.