Therefor, according to TIC and contractual specifications, they need to add this provision to the letter of credit.

因此，根据TIC，按合同规定，他们需要在信用证上增加该条款。

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That Party a don't pay advance payment, progress payment and price difference in purchased materials via procurement agent as per contractual specifications influences construction progress.

未按合同规定拨付预付款、工程进度款、代购材料价差款而影响施工进度的。

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That Party a don't pay advance payment, progress payment and price difference in purchased materials via procurement agent as per contractual specifications influences construction progress.

未按合同规定拨付预付款、工程进度款、代购材料价差款而影响施工进度的。

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