(Sharecast News) - Edenville Energy has inked a "significant contract" for the supply of a specialised coal product with an unnamed East African industrial outfit.The Tanzanian-focussed coal miner signed a two-year contract on Tuesday that will see the AIM-listed firm supply its mysterious African client with 3,500-6,000 tonnes of coal with a gross calorific value of 5,500 kCal per kilogram per month.While Edenville did not reveal any numbers, the group said that it had agreed upon pricing with its customer, based on local commercial rates.Edenville told investors it had been working with the customer "for some time" to create a product specifically suited to its operations and that it had been supplying the East African outfit with test batches of coal.The group also highlighted the fact that upgrades currently being undertaken at its Rukwa project site will ensure this contract, along with its other customer deliveries, can be met.Chief executive Rufus Short, said: "I am very pleased we have formalised this relationship and have secured Edenville's largest single coal contract to date. We look forward to supplying this customer with coal from our operation in Tanzania and we will continue to work with them to ensure their needs are met.""With this contract, we now have in excess of 8,000 tonnes per month of regular orders and are busy implementing the expansion plans at site."As of 1345 BST, Edenville shares had picked up 1.96% to 0.27p.