Circular economy

Explanation

Statement 1 is correct: black mass is a powder-like material derived from shredded used lithium-ion batteries and is a well-established secondary source of critical minerals — lithium, cobalt, nickel, manganese, and graphite — that can be recovered through hydrometallurgical or pyrometallurgical processes and reused in new cell manufacturing. This is the foundational principle of battery recycling in a circular economy. Statement 2 is incorrect: black mass is classified as a secondary raw material, not a primary one — the two are conceptually distinct in circular economy frameworks. Moreover, minerals recovered from black mass require refining steps comparable to (and sometimes more complex than) virgin ore processing, and the composition of black mass varies significantly depending on battery chemistry (NMC, LFP, NCA), unlike standardised virgin ore grades. The circular economy value of black mass lies precisely in its secondary-source status — it recovers embedded value from end-of-life products rather than substituting for primary mining in a chemically equivalent sense. Statement 3 is correct: export restrictions on black mass are a classic supply-side policy instrument used to retain secondary mineral streams within the domestic recycling ecosystem. By preventing black mass from leaving the country, the policy forces domestically generated battery waste to flow to domestic recyclers, expanding their raw material base, reducing battery manufacturers' reliance on virgin critical mineral imports, and reinforcing the closed-loop supply chain that is the structural objective of a circular battery economy.