【正文】 and any other information required to be submitted in accordance with these Instructions. The Forms, Bill of Quantities and Schedules provided in Volume 3 of these documents shall be used without exception (subject to extensions of the Schedules in the same format, and to the provisions of Clause hereof regarding the alternative forms of tender security).  All documents issued for the purpose of tendering as described in Clause and addenda issued in accordance with Clause 8 shall be deemed incorporated in the tender. Tender documents not required to be signed and submitted in accordance with Clauses 17 and 18 shall be returned to the office of issue before the expiry of the tender validity period, but must not be enclosed with the Tender.  Tenderers shall submit with their tender a preliminary program in the format required by Clause 14 of the Conditions of Contract.  The successful tenderer will be required to revise or augment his Program as set out in the Contract. 11. Tender Prices  Unless explicitly stated otherwise in the tender documents, the Contract shall be for the whole of the Works ______ as described in Clause 1 hereof, based on the schedules of unit rates and amounts submitted by the tenderer.  The tenderer shall fill in rates and amounts for all items of work described in the Bill of Quantities, whether quantities are stated or not. Items against which no rate or amount is entered by the tenderer will not be paid for by the Employer when executed and shall be deemed covered by the other rates and amounts entered in the Bill of Quantities.  All duties, taxes and other levies payable by the Contractor under the Contract, or for any other cause, as at the date ________ days prior to the date for submission of tenders shall be included in the rates and amounts and total tender sum submitted by the tenderer, and the evaluation and parison of tenders by the Employer shall be made accordingly.  The rates and amounts entered by the tenderer shall be subject to adjustment during the performance of the Contract in accordance with the provisions of the Conditions of Contract. The tenderer shall plete Schedule IIIPrice Adjustment Provisions and shall submit with his tender such other supporting information as is required under Clause 70 of the Conditions of Contract. 12. Currencies of Tender and Payment  The unit rates and prices shall be quoted by the tender entirely in RMB. A tenderer expecting to incur expenditures in other currencies for inputs to the Works supplied from outside China (referred to as the foreign currency requirements) shall indicate in Schedule I of Foreign Currency Requirements the percentage of the Tender Price (excluding Provisional Sums) needed by him for the payment of such foreign currency requirements either (i) entirely in the currency of the tenderer39。s home country or, at the tenderer39。s option, (ii) entirely in US dollars, always provided that a tenderer expecting to incur expenditures in a currency or currencies other than those stated in (i) and (ii) above for a portion of the foreign currency requirements, and wishing to be paid accordingly, shall so indicate the percentage portion in his tender. The percentage portion indicated shall remain fixed for the duration of the Contract. The amounts in various currencies calculated on the basis of the percentages indicated in the Tender and by use of the exchange rates indicated in clause hereinafter, shall be used for the purpose of conversion and parison of tenders pursuant to Clause 7.  The rates of exchange to be used by the tenderer for currency conversion shall be the governing selling rates published by the Bank of China on the date ______ day prior to the latest date for the submission of tenders. If exchange rages are not so published for certain currencies, the tenderer shall state the rates used and the source. For the purpose of payments, the exchange rates used in tender preparation shall apply for the duration of the Contract.  The total amount of foreign and local currencies expected to be required by tenderers shall be substantiated in Schedules I and I (A)Foreign Currency and Local Currency Requirements, and the annex thereto, Tenderers shall describe the manner in which such foreign and local currencies are expected to be used, relating specifically, but not limited to: Foreign Currency (a) Expatriate staff directly employed on the Works: (b) Social charges, insurance premiums and medical care related to such staff, and travel expenses between China and the country of origin。 (c) A list of the imported materials, both temporary and permanent, required for the Works。 (d) Depreciation and usage of plant and equipment, including spare parts, required for the Works。 (e) Insurance and freight charges for imported materials, plant and equipment, including spare parts。 and (f) Overhead expenses, fees and financial charges incurred outside China. Local Currency (g) Local labour。 (h) Local materials。 (i) Other services, and。 (j) Overhead expenses, fees and financial charges within China.  Tenderers may be required by the Employer to clarify their foreign currency requirements, and to provide satisfactory proof that the amounts included in the unit rates and in Schedule I are reasonable and responsive to clause hereof.  The tender shall plete Schedule II Estimated Contract Payments and shall substantiate the tabulation of this Schedule by attaching a table indicating anticipated major quantities of work performed over the duration of the Works. 13. Tender Validity　　 The tender shall remain valid and open for acceptance for a period of six calendar months from the specified date of tender closing. 　　 In exceptional circumstances, prior to expiry of the original tender validity period, the Employer or his agent _______