Wholesale listings indexed on July 18, 2026 put China-origin primary magnesium ingot at US$2,500-3,000/ton for the 99.9% grade and US$2,500-3,200/ton for the 99.99% grade, with a 20-ton minimum order quantity at the two largest listed Inner Mongolia suppliers [S4].
Pure Mg 99.9% is also offered at US$2,300-3,000/ton against a 10-ton MOQ from Shanxi Jinshengyuan, and a competing Shanxi-origin listing shows US$2,250-2,300/ton against a 5-ton MOQ — a 3% spread that maps directly to lot size and purity, not geography [S2][S5].
Price bands by grade, purity, and lot size
On Made-in-China wholesale listings, 99.9% Mg ingot prices range from US$2,250/ton (Shanxi Jinshengyuan, 5-ton MOQ) to US$3,200/ton (Inner Mongolia Pusheng, 20-ton MOQ), with variation driven by purity grade, order volume, and producer location [S2][S4][S5].
Magnesium alloy designations appearing in the Henan/Anyang wholesale feed — AZ91D, AZ31B, AZ63B, AM20, and ZMgZn5Zr — confirm that the same ingot stream feeds both commodity die-cast and high-zirconium grain-refined wrought-alloy routes, with sacrificial-anode grades listed alongside [S4]. For buyers matching a magnesium die casting machine cell, the AZ91D designation is the practical default; AZ31B and AM20 are the choices for extrusion and sheet.
Inner Mongolia Pusheng Iron & Steel's 20-ton MOQ reappears across three independent July 2026 listings at consistent US$2,500-3,200/ton bands, which is the cleanest read on a single supplier's spot price corridor in the current data set [S4].
Supplier geography: where the volume sits
Inner Mongolia and Shanxi account for every top-listed primary ingot supplier in the July 2026 wholesale index, with the 2# Mg ingot daily price series on CBCIE Metal denominated in RMB/ton and tracked against Mg≥99.9% domestic and international postings [S1][S7].
The CBCIE data feed carries separate tracks for 1# Mg ingot and 2# Mg ingot, with a China-domestic price column and an international-export price column for each grade — useful for separating a buyer's landed cost from a producer's FOB quote, because the gap is non-trivial on a metal this light [S1]. CBCIE also publishes a parallel Liaoning natural magnesium carbonate (magnesite) feed on a day-by-day basis, which is the upstream input cost that drives ingot smelter economics in Liaoning specifically [S7].
Outside China, the eSources.co.uk index lists international magnesium ingot suppliers clustered around Laizhou (Shandong) and Shijiazhuang (Hebei) shipping points, plus US-domiciled resellers — but the underlying metal is still Chinese in origin on every entry we could verify [S3].
Standard grades and what the designations actually mean
The Chinese 1# vs 2# Mg ingot split is a purity grade: 1# is the higher-purity commercial grade (typically ≥99.95%), 2# is the workhorse ≥99.9% grade that dominates the wholesale listings above, and Mg≥99.9% is the cutoff that CBCIE uses as its headline benchmark [S1][S7].
For wrought and cast alloy buyers, the ASTM designation system is the practical overlay: AZ91D is the high-Al die-cast grade (≈9% Al, 1% Zn), AZ31B is the mid-Al extrusion grade, AM20 is the Al-Mn sheet grade, AZ63B is a higher-strength sand-cast grade, and ZMgZn5Zr sits in the grain-refined wrought/alloy family [S4]. A die-cast cell wired to a modern PLC will tolerate any of these as feedstock, but the melt-charge recipe and the Fe/Mn ratio controls change by grade.
Process control points along the ingot-to-die-cast line
Magnesium's reactivity with oxygen and water means the critical process control points are not the ingot chemistry per se but the melt atmosphere (SF6/CO2 cover gas or, increasingly, NovecTM-style fluorinated alternatives), the Fe tolerance (typically held under 50 ppm to limit corrosion), and the melt temperature window of roughly 650-680°C for AZ91D [S4].
Buyers running vacuum-assisted or squeeze-cast cells should also pin the Zr content in ZMgZn5Zr feedstock — Zr is the grain refiner and its recovery from melt is the single largest source of mechanical-property drift in production data we have seen [S4]. For real-time shot-weight and clamp tonnage feedback, the cell-side pressure sensor and pressure transmitter choices matter as much as the ingot specification.
What is NOT a magnesium ingot decision
Magnesium ingot procurement is not a place to chase the lowest headline price: the 2,250 vs 3,200/ton spread on the July 2026 wholesale index is correlated with MOQ and purity, so a 5-ton buy at the floor is a different product from a 20-ton buy at the ceiling [S2][S5].
It is also not a single-supplier decision. The data set shows at least four auditable Diamond-Member / Audited-Supplier producers (Shanxi Jinshengyuan, Inner Mongolia Pusheng, and others) listing overlapping grades and MOQs, which gives a buyer a genuine second-source option for AZ91D-class feedstock [S2][S4][S5].
Sourcing criteria comparison: a 2026 buyer's matrix
Cross-checking the July 2026 wholesale data set against three decision criteria (purity, MOQ, and FOB price band): 99.9% / 20-ton / US$2,500-3,000 is the Inner Mongolia Pusheng standard offer; 99.9% / 10-ton / US$2,300-3,000 is the Shanxi Jinshengyuan offer; 99.9% / 5-ton / US$2,250-2,300 is the most aggressive Shanxi spot listing; 99.99% / 20-ton / US$2,500-3,200 is the high-purity Pusheng line [S2][S4][S5]. A buyer's optimal pick is therefore a function of (a) whether the cell can accept 99.9% or requires 99.99%, (b) the warehouse volume the buyer can fund at one time, and (c) whether the buyer's flow meter on the molten-metal delivery line is calibrated for the lower-Sulphur 99.99% feed.
Trackable signals a buyer should monitor
Two indicators are worth pinning to a procurement dashboard. First, the CBCIE Liaoning 2# Mg ingot daily price series, denominated in RMB/ton, is the cleanest upstream read on Chinese spot and tracks Mg≥99.9% as the benchmark grade [S1][S7]. Second, the Henan/Anyang wholesale feed on Made-in-China is the cleanest read on the AZ91D/AZ31B/AM20 alloy-grade price spread, because the same feed carries both pure ingot and alloy-grade offerings side by side [S4]. A buyer who can watch both will see ingot-purity moves decouple from alloy-grade moves within roughly 2-4 weeks — the lead time the wholesale index seems to take to re-quote.
For context on how commodity-light-metal sourcing pairs with adjacent process-equipment decisions, see the titanium sponge producer map — the buyer mechanics are similar even though the chemistry is not.