信用证要求中国商会出具的原产地证

客户信用证要求我们提供CO产地证，但是要求CO产地证是从从商会开出的原产地证，请问这个是哪个机构？难道是我理解错误了吗？信用的原话是这样的：certificate of origin in 1 original and 1 copy issued and / or certified by the local chamber of commerce and / or china origin showing exporting country, name and address of the manufacturer or producer and the exporter.