HCI has been massively applied in various industries and aspects. There are normally 3 categories of HCI : By-product HCI, Synthesis HCI and High Purification HCI. By-product HCI contains more impurities such as Iron and Organic Matters that will decrease the product quality and will lead to yellow color on the other hand.

SDI holds full Know-How of the Purification of By-product HCI. We can offer services of Purification Unit Design, Equipment Manufacture and Delivery, On-site Installation Guidance, Operation Supervision, On-site Trouble Shooting, Training and Know-How Transfer for customer.