Hi, I will praise that the portal has been a good platform for buyer. Industry experience and the business knowledge and needs are important. For our aerospace industry, we treasure customer service team to understand the quality needs of the aviation world. COC is a must for our purchase. Dedicated or personalized CS team to the specific industry can foster good working relationship and manage expectation well. Sometimes, it takes too long for a return quotation compared to other direct vendors, who can provide within 2 working days. Some platform can provide exclusive prices for corporate customers in their account and this will entice users as a privileged to continue buying from these platforms. Overall, the CS team are polite and helpful but the industries need more technical such as recommendation and personal touch services. Thank you.