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I am kindly requesting a quote for Potassium Sulfate number CAS 7778-80-5 in crystalline form, for the following quantities: -96 tons -240 tons -480 tons Packaging options: A: 25 kg bags B: 1000 kg bags Can you provide samples? Please provide your offer, including the following details: -Payment terms -Shipping costs for FOB or CIF to city Gdansk or Gdynia -Delivery time Additionally, could you please send the exact product specification (MSDS) for your product? Can you provide samples? Furthermore, I would like to know whether you possess REACH certification for this product.