The main differences lie in purity, impurity control, and functional verification. For example, pharmaceutical grade requires a purity of ≥99% and sterility, while feed grade needs to verify intestinal repair rate.

Food and beverage (preservative), medicine (pH regulator), industrial cleaning (chelating agent), and cosmetics (stabilizer).

It is necessary to comply with the REACH regulation (registration is required for annual tonnage ≥1 ton), and additional notification is required if the concentration of SVHC substances exceeds 0.1%.

It is subject to jurisdiction if it meets the territorial rules (transited through the U.S.) or origin rules (U.S. content ≥10%), etc.

Europe (Belgium, Germany), the Americas (United States, Brazil), Asia (Japan, India) and the Middle East (Saudi Arabia).

For example, South Korea's K-REACH requires registration through a local representative; annual tonnage ≥1 ton requires declaration of use and safety data.

Support for adjusting formulas and documents according to target country standards (e.g., EU EC 1333/2008, US FDA GRAS).

We implement three guarantees: ① Batch sample comparison (retain customer-confirmed samples and bulk product samples) ② Third-party testing reports (e.g., SGS purity testing) ③ Acceptance of re-inspection upon delivery (return or exchange available if deviation exceeds ±0.5%).

The standard process is: Provide dispute evidence → Re-inspection by both parties' laboratories → Accept CIQ arbitration → Compensation according to contract terms (usually replenishment or refund).

For the first order, 30% advance payment + 70% payment against copy of bill of lading is recommended. After 3 cooperations, L/C payment can be applied (subject to bank credit review).

By default, the contract locks the exchange rate at the Bank of China's spot exchange buying rate on the order date. Cross-border RMB settlement can also be chosen to avoid risks.

Emergency plans are provided: ① Priority recommendation of China-Europe Railway Express (40% faster than sea freight) ② Urgent orders can be split for air freight (freight difference to be supplemented).

Demurrage/container detention fees are calculated daily (usually USD 100-300/day). It is recommended to purchase DDP terms, where we handle customs clearance.

48-hour response in Asia; remote video diagnosis provided in Europe and America (requires advance engineer appointment).

Cite the "force majeure clause" in the contract: refund the paid amount or store the goods temporarily until policies are relaxed (we bear the storage fees).

A "Document Timeliness Commitment" must be signed upon order confirmation; failure to provide it within the deadline will be deemed as automatic abandonment of the goods.