The performance of work under the Order may be terminated in whole or from time to time in part by the Purchaser by notice in writing to the Seller in which event the Seller shall only be entitled to be paid for the performance of work carried out under the Order up to the time of such termination by the Purchaser. Seller is not authorized to cancel or stop part supplies in between project running; 6 months written notice beforehand with cost incurred payment to Buyer might be acceptable.