在任何情况下，雇主在按照履约担保提出索赔之前，皆应通知承包商，说明导致索赔的违约性质。

Prior to making a claim under the Performance security the Employer shall, in every case, notify the Contractor stating the nature of the default in respect of which the claim is to the made.

youdao

如果承包商未能根据合同履行任何义务，雇主可通知承包商，要求其在规定的合理时间内，纠正并补救上述违约行为。

If the Contractor fails to carry out any obligation under the Contract, the Employer may by notice require the Contractor to make good the failure and to remedy it within a specified reasonable time.

youdao