(3) If the Vendor informs the Purch

(3) If the Vendor informs the Purchaser of any change in the Contract Price and/or change of the Delivery Date(s) pursuant to the provisions of the preceding Clause (2), the Purchaser and the Vendor shall mutually agree in writing upon an equitable adjustment in the Contract Price and/or change of the Delivery Date(s), provided that the adjustment in the Contract Price shall be made between the
Purchaser and the Vendor based on such prices and/or rates as specified in the Price Schedule, as far
as the breakdown items of the Equipment and/or the Work specified in the Price Schedule are the
same or similar to the said modifications or variations in their character. Upon the mutual agreement
mentioned above, the Vendor shall immediately commence performance of the modifications or
variations, provided, however, that the Purchaser shall have the right at its option to instruct the
Vendor in writing to commence performance of the modifications or variations upon receipt by the
Vendor of the written notice of the modifications or variations as set forth in the preceding Clause (1)
or at any time instructed by the Purchaser prior to the above mutual agreement, and in such case, the
Vendor shall immediately comply with such instruction.