Our company (Xingtai Ningguan Cashmere Products Co., Ltd.) is long-term purchasing used cashmere sweaters from Japan, with the following specific requirements:

1. Material Requirement: Must be 100% pure cashmere (no blending allowed), excluding any mixed materials such as cashmere + wool, cashmere + chemical fiber, etc. Suppliers who can provide relevant purity test certificates are preferred.

2. Purchase Volume: Large quantities of purchases every month, with long-term and stable cooperation. The specific purchase volume can be negotiated according to the supplier's supply capacity. We give priority to Japanese used cashmere sorting companies with stable supply and sufficient production capacity.

3. Source Requirement: The source of goods must be from Japan, provided by formal local Japanese used cashmere sweater sorting companies, ensuring the legality of the source and the authenticity of the material.

4. Cooperation Requirement: Suppliers must have professional cashmere sorting capabilities, be able to grade according to material purity, color and damage degree, support bulk packaging and shipment, have relevant qualifications for export to China, and cooperate with our company for factory inspection and sample testing.