韩国采购需求：粉末加工、钣金、金属零件、钣金加工、金属加工、硅锰合金

We are looking for a reliable supplier for high-purity HfO2 powder, specifically with a purity level of 99.9%. The desired particle size should fall within the range of 1-5 micrometers (APS). Our initial order quantities would vary from 1 kg to a maximum of 20 kg, depending on the pricing and delivery terms. Please provide us with your best quotation in USD per kilogram. Additionally, we require the goods to be shipped by air to Incheon Airport. It would be great if you could include details regarding the lead time for delivery and any potential discounts for larger order quantities. Looking forward to your prompt response!