China Critical Minerals & Battery Materials: Trade Data, Trends & Supply Chains

For China lithium imports, start with spodumene and lithium carbonate. For the next processing stage, examine lithium hydroxide. Lithium hexafluorophosphate (LiPF6) belongs to the electrolyte chain; lithium iron phosphate (LFP) and nickel cobalt manganese composite hydroxide, an NCM precursor, belong to cathode-material research.

A supplier-diversification study can compare Australia with Brazil and individual African partners in the spodumene import breakdown. Define the African country set explicitly instead of treating the continent as one supplier. A higher import value from a new partner is a research lead; it does not establish a new mine’s output or prove a lasting change in sourcing.

Keep the denominators consistent. Tonnes of spodumene cannot be added to tonnes of lithium carbonate as though they represented the same lithium content. A record-high claim also needs the full available history and a stated metric, rather than just a large year-on-year percentage.

For China rare-earth exports, finished rare-earth permanent magnets offer a different lens from rare-earth oxides and compounds. Magnet shipments track a manufactured product; elemental metals and oxides describe upstream materials. Yttrium, dysprosium and terbium warrant their own product selections.

To investigate rare-earth magnet exports to the United States, select the magnet product, export flow and US destination, then compare the same months in both years. Global magnet exports can move in a different direction from shipments to one country. A change in customs value does not, on its own, identify a licensing delay or a change in end-user demand.

Natural flake graphite and artificial graphite answer different questions. Flake graphite is a natural mineral product; artificial, or synthetic, graphite is a manufactured carbon material. Spherical graphite is another distinct tariff line relevant to investigating the battery-material chain.

When natural graphite imports jump, inspect the supplying countries, the prior-year base and quantities. Then compare the relevant export lines. An import surge alone does not show higher Chinese battery production, and an artificial-graphite tariff line should not be treated as exclusively battery-grade anode material.

Small markets can produce striking percentages. For gallium and germanium exports, use their separate eight-digit lines: their six-digit parent includes other metals. Even the narrower unwrought lines include waste, scrap or powders, so read the full description before treating them as pure-metal shipments.

For antimony and tungsten, separate ores, oxides and metal products. For tin, compare ore imports with refined-metal trade; a Myanmar tin-ore study needs the Myanmar partner selection rather than a global total. For molybdenum, distinguish ore and concentrate forms from downstream metal or alloy products.

These comparisons help identify where to investigate supply exposure. Explaining a change requires more than customs data: prices, processing activity, inventory movements and policy announcements may all matter.

Compare nickel ore, ferronickel and unwrought nickel separately. Ferronickel data can inform research into nickel pig iron (NPI), but a tariff total should not be relabelled as a precise NPI-only measure without additional classification evidence.

Cobalt intermediates and unwrought cobalt also need separate tariff lines. Opposite movements may indicate a change in the composition of recorded imports, but the percentages alone do not prove substitution between products. Compare their dollar changes, quantities and partner mix before assessing the importance of the divergence.

Cobalt sulfate is a separate research requirement. Where the published catalog does not isolate it, request a classification and coverage check; a residual “other sulphates” heading cannot provide a clean cobalt-sulfate series.

Alumina can move from net imports to net exports in one month while the year-to-date balance remains negative. Match both flows, period and unit before assigning a net-trade label.

For unwrought aluminium alloys, compare Korea and Japan using the same-month weight or value denominator; a dramatic growth percentage alone does not identify the largest destination.