We know that both are the result of the abnormal accumulation of muscle glycogen which is the storage form of glucose in muscles. Type 1 PSSM is caused by a mutation in the GYS1 gene. The cause of Type 2 PSSM has yet to be identified. Horses with Type 1 PSSM can be identified by genetic testing.
Read. The export declaration must be filed by the exporter. The exporter is the party who owns the goods to be exported at the moment that the export declaration is filed with Customs, or who possesses the goods at that moment.
Last updated: , see all updates. Part of: Import and export procedures, Import and export and Business tax. Rules to establish the country of origin of imported and exported goods and to help identify those which qualify for lower or nil customs duty.ome goods imported from or exported to certain countries will qualify for preferential treatment-eg lower or nil customs duty, whereas others will have non-preferential status and attract full excise.