(ก) Change of material and work quantities reasonably required for the performance of Work. It shall be only considered to be ±5% of the total Contract price.
(ข) Subcontractor shall verify the escalation in the market with all back up documents and substantiated, actual invoices/cost available, subject to PET approval.
However, the escalation shall be accepted only for the items having the enormous cost difference incurred after lyea r from the contract effective date.
(ค) Changes that are necessary in order for Contractor to satisfy its responsibilities to make the Facilities capable of performing as specified in this Contract. If design changes results in scope change including increase in material and labor, the discussion to be made between the two parties, subject to PET approval. The payment for design change shall be payable by Contractor to Subcontractor after receipt of the foregoing Invoice and documentation.
(ง) Additional services required because of breach of, or Subcontractor's failure to comply with, Subcontractor's warranties; or
(จ) Changes relating to re-performance of any Work because of Subcontractor's failure to comply with this Contract.