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What is a CR Number?

CR Number A CR Number, a 10-digit Customs Registration Number is required for import product into China.  A CR Number is not required for goods/equipment/products shipping. This regulation has been in a trial period since July 2010.  The importer in China, who must be registered with the Chinese Agency of Industry and Commerce,  will need to obtain a CR  Full Article…



Where is my invoice? Invoices are emailed to the “bill to” email address on your order at the time they are shipped.  You will not receive an invoice for backordered items until they are restocked and shipped.  If you require a copy of your invoice for a previous order please note the attached pdf What  Full Article…


How to Contact

Who is my DyStar Technical Service Representative? Our team of DyStar Technical Service Representatives would be happy to assist you.  Please click here to view a list of DyStar Technical Service Representatives. Who is my CSI Customer Service Representative? Our team of CSI Customer Service Representatives would be happy to assist you. Please click here to find your  Full Article…