Common use of Customers and Suppliers; Coal Supply Contracts Clause in Contracts

Customers and Suppliers; Coal Supply Contracts. (a) Schedule 3.11 of the Contributor Disclosure Schedules lists the customers of the Kemmerer Mining Operation since January 31, 2012, the date of Contributor’s acquisition of the Kemmerer Mining Operation, and sets forth opposite the name of each such customer and the percentage of revenue for each such fiscal year attributable to such customer. Since January 31, 2012, the date of Contributor’s acquisition of the Kemmerer Mining Operation, neither Contributor nor any of its Affiliates has received any customer complaints relating to the Kemmerer Mining Operation, nor has Contributor or any of its Affiliates had any of its coal deliveries relating to the Kemmerer Mining Operation returned or rejected by a purchaser thereof, other than complaints in the Ordinary Course of Business that have not, and are not reasonably likely to have, individually or in the aggregate, a Contributor Material Adverse Effect.