——解答：香港离岸公司的证明单据办理大使馆公证的手续如下：首先需要送香港总商会认证，然后再送该地的驻华大使馆公证，不同的领事馆所需要的时间不同，具体情况具体分析，所需要的时间请以该地驻华大使馆为准。

以下是香港总商会认证企业发票的样本明仅供参考！

    The commercial invoice of the Hong Kong offshore company is sent to the Hong Kong General Chamber of Commerce for certification. When we export to other countries, we usually use the Hong Kong offshore company to collect money. The importer requires the commercial invoice of the Hong Kong trading company to be able to do the certification.Hong Kong trading company's commercial invoice certification is to the Hong Kong General Chamber of Commerce certification.Occasionally the Hong Kong general chamber of commerce is not recognized by small or medium sized countries, but also needs to be sent to the international chamber of commerce CCPIT double certification to be effective.The company documents required by the Hong Kong offshore company for foreign investment are not only certified by the Hong Kong General Chamber of Commerce, but also have to be double certified with the seal of the embassy of the country in China. Only the documents with this kind of certification are allowed to be used abroad.