TIANJIN DONGYI MAGNESIUM is an Exporter specializing in primary and alloy magnesium products, including anodes, heaters, wrought magnesium and related components. Since 2021 the firm has shipped regularly to a single major buyer, MAG SPECIALTIES INC, averaging 2‑5 container loads per month with a total monthly weight ranging from ~16 t to 84 t, primarily from Tianjin (and occasionally Pusan or Qingdao) to Los Angeles or Long Beach ports in the United States. The consistent use of HS 810490 (magnesium alloys) and HS 950629 (miscellaneous metal articles) demonstrates a focused product line and stable HS‑code classification, which eases customs processing. For buyers, the repeat‑order pattern and reliable port routing signal a dependable supply source with predictable lead‑times and a narrow, high‑value product portfolio. For customs brokers, the uniform documentation, recurring origin‑port and destination‑port pairs, and stable HS‑code usage translate into streamlined clearance, low error risk, and efficient filing of import manifests.