How Zambia Is Using Export Duties to Force Copper Processing at Home

Zambia is in active negotiations with a Chinese cable manufacturer to build a factory on Zambian soil, and that single detail tells a larger story. Africa’s second-largest copper producer is assembling a policy architecture designed to convert copper extraction into an industrial programme, using export duties, modernised mining law, a state investment vehicle, and local-content procurement thresholds to reshape how value flows through the copper supply chain. The approach targets Chinese operators first, but its implications extend to every foreign mining company operating in the jurisdiction. What follows is an analysis of how the policy toolkit works, why Chinese firms sit at its centre, what the economics of copper processing actually look like, and whether Zambia’s ambitions are credible given its infrastructure constraints.

The policy toolkit Zambia is using to keep copper value at home

Zambia’s beneficiation push is not a single instrument. It is a system of five interlocking tools, each reinforcing the others.

• Export levy: A 10-15% duty on unprocessed ores and concentrates under Section 72A of the Customs and Excise Act, creating a direct fiscal penalty for exporting copper in its least-processed form
• MRCA 2024: The Minerals Regulation Commission Act, which replaced the 2015 Mines and Minerals Development Act, ties extraction licences to processing and refining requirements
• National Mineral Resource Development Policy (2022): Sets beneficiation and downstream product development as explicit priorities, reinforced by the National Critical Minerals Strategy and the Eighth National Development Plan 2022-2026
• Local-content regulations: The 2025 Regulations introduce a minimum 20% of qualifying procurement spend with Zambian suppliers, rising to 35% within three years
• ZAMIC: The Zambia Minerals Investment Corporation Limited, a special-purpose vehicle that allows the state to co-invest in smelting, refining, and manufacturing joint ventures rather than merely regulate them

The Minerals Regulation Commission Act 2024, published by the National Assembly of Zambia, formally establishes the Minerals Regulation Commission and grants it powers to tie extraction licences to downstream processing commitments, giving the regulatory framework a statutory footing that previous mining legislation did not provide.

Investors who model only the export duty are missing the structural constraints embedded in licencing and the state’s capacity to participate as an equity partner in processing ventures. The toolkit is designed so that each instrument covers the gaps left by the others.

How waivers turn the export duty into a negotiating weapon

The export duty does not function as a static tax rate. It functions as a lever.

1. Levy introduction: The 10% export duty on copper concentrates was established under Section 72A of the Customs and Excise Act, targeting exports in their least-processed form
2. August 2025: Zambia suspended the duty for selected volumes, citing smelter maintenance and concentrate stockpile accumulation
3. June 2026: The waiver was extended to 271,742 tonnes of concentrates, valid until 30 September 2026
4. September 2026: The waiver expires, creating the next critical decision point for Lusaka on renewal, narrowing, or lapse

The public justification for each waiver has centred on processing bottlenecks: smelter outages created large stockpiles of unprocessed material, and temporary export relief prevented operational paralysis. That rationale is plausible. But the discretionary, time-limited nature of the mechanism means something more is at work.

A flat ban is binary. A flat tax is predictable. A statutory duty combined with selective, time-bound waivers is neither. It introduces conditionality and relationship management into the fiscal regime, giving Lusaka granular control over the economics of individual operators.

The waiver mechanism transforms a fiscal instrument into a bilateral negotiation tool. Duty exposure for any given operator is now a function of plant configuration and the quality of its policy relationship with Lusaka, not a static line item.

While specific conditionalities attached to current waivers are not publicly documented, the architecture creates the conditions under which future waivers could be formally tied to smelting commitments, local-content milestones, or manufacturing investment. For investors modelling Zambia exposure, duty assumptions must be treated as a dynamic variable.

Why Chinese miners are the primary target, and what that means in practice

Subsidiaries of China Nonferrous Metal Mining Group (CNMC), including Non-Ferrous China Africa, hold and operate major assets such as the Chambishi and Luanshya copper mines. CNMC has publicly stated it is seeking to acquire additional Zambian copper assets to build reserves in energy-transition metals. This concentrated presence makes Chinese operators the natural addressees of Zambia’s beneficiation agenda.

The logic runs in both directions. China’s industrial demand for copper, particularly for power infrastructure and renewable energy systems, means Chinese firms have a structural interest in secure supply. Zambia’s interest lies in converting that demand into domestic smelting and fabrication investment. The relationship is one of mutual dependency, not simple confrontation, and it is precisely this interdependence that makes a sophisticated toolkit necessary rather than blunt coercion.

The scale of that demand pull matters for understanding why Zambia’s leverage is real: copper as a strategic infrastructure input for AI data centres, grid electrification, and EV adoption is projected to drive a roughly 50% rise in global demand by 2040, a structural shift that fundamentally strengthens resource-holding nations’ bargaining positions.

ZAMIC’s joint-venture mandate provides the structural vehicle. Chinese firms can participate in downstream plays alongside the Zambian state, exchanging capital and technical expertise for stable resource access. The carrots (access, co-investment, regulatory stability) and the sticks (duties, licensing constraints) work in tandem.

The Wuxi Jiangnan Cable negotiations as a test case

The clearest current example of this dynamic is the negotiation with Wuxi Jiangnan Cable, a Chinese cable manufacturer. According to reporting by Africa Intelligence in July 2026, Zambia is pursuing an agreement to establish a local facility producing:

• High-voltage electrical cables
• Industrial wiring
• Fabricated copper components

Senior Wuxi Jiangnan Cable staff are scheduled to visit Lusaka in September 2026, making this a near-term indicator with a specific date attached. A signed memorandum of understanding or investment agreement would move Zambia from the ore-to-cathode segment into fully fabricated electrical goods, completing the domestic value chain from ore through concentrate through refined metal to finished cable. Any such deal would be a pivotal signal of whether policy intent is translating into operational commitment.

What beneficiation looks like as an investment model: copper’s value chain unpacked

To understand why Zambia is pursuing cable manufacturing rather than stopping at cathode production, it helps to see where value is added at each stage of the copper processing chain.

The export levy specifically targets the ore-to-concentrate transition, creating a fiscal bias that pushes operators toward smelting at minimum. But the real prize is further along the chain. Cathode production remains a commodity business tied to the London Metal Exchange price. Cable manufacturing operates in specification-driven markets with long-term contracts, branding, and higher margin capture.

The copper price trajectory heading into late 2026 amplifies every aspect of this calculus: with UBS projecting a refined market deficit of 520,000 metric tonnes and prices potentially reaching US$15,500/t by mid-2027, the fiscal value of each tonne retained for domestic processing rather than exported as concentrate rises proportionally.

Zambia’s policy ambition targets the highest-value stage of the copper processing chain, which is also the most infrastructure-dependent. The gap between these two facts is where the investment risk sits.

Zambia’s own official documents acknowledge the constraints: power reliability, transport infrastructure, and specialised technical skills are identified as the primary bottlenecks for energy-intensive smelting and cable manufacture. Copper refining and cable production require consistent, large-scale electricity supply. Unless power-sector constraints are addressed, manufacturing plants may face operational risk even where contracts and policy frameworks are in place. Investors evaluating downstream joint ventures should treat infrastructure and power-sector risk as primary inputs in project modelling.

Capital cost overruns in minerals projects are a documented structural feature of the industry, with Wood Mackenzie estimating 40-50% overruns as typical for critical minerals developments; for Zambia’s beneficiation ambitions, this baseline risk compounds the infrastructure constraints already identified in government planning documents, making independent cost validation a prerequisite for any smelter or cable-manufacturing joint venture assessment.

Africa’s broader beneficiation trend and where Zambia sits in it

Zambia’s approach is neither isolated nor uniquely radical. It is part of a broader pattern across African and Global South governments seeking to retain more value from mineral exports.

Indonesia’s 2020 nickel ore export ban is the model African policymakers cite most frequently. It forced foreign firms to build domestic processing plants and is widely regarded as having succeeded in its core objective. The DRC’s concentrate export ban pursues the same structural goal but has faced greater implementation difficulties.

The African Development Bank analysis of Indonesia’s nickel export ban documents how the 2020 restriction drove a substantial increase in foreign direct investment into domestic processing facilities, and explicitly identifies the Indonesian model as a reference point for other resource-rich countries seeking to advance downstream mineral processing capabilities.

What distinguishes Zambia’s approach is the combination of statutory duty with managed, discretionary waivers and proactive outreach to downstream manufacturers. This is more flexible than a hard ban and, in principle, more investor-sensitive, allowing negotiated outcomes tailored to individual operators. The risk is that this flexibility cuts both ways: waivers granted too liberally, without attached conditionality, could dilute the policy’s credibility. The current waiver of 271,742 tonnes running to 30 September 2026 is the live test of where Lusaka draws that line.

What investors should be watching in the next 12 months

Five indicators will determine whether Zambia’s copper processing push translates into durable, investable change:

1. The September 2026 waiver decision. If the 30 September 2026 waiver lapses or is narrowed to operators with demonstrated processing commitments, Lusaka is serious about fiscal enforcement. If a blanket renewal is granted without conditionality, the policy’s deterrence value weakens.
2. MRCA processing-licence enforcement. How strictly authorities tie new mining licences to concrete smelting and refining milestones will reveal the real regulatory bite of the 2024 legislation. Loose enforcement signals the law is aspirational rather than binding.
3. ZAMIC joint-venture activity. The projects ZAMIC chooses to co-invest in, whether smelters, refineries, or manufacturing plants, will indicate the state’s preferred industrial configuration and the credibility of its co-investment capacity.
4. Power-sector and infrastructure progress. Generation capacity, grid reliability, and industrial-tariff reform are as important to copper processing viability as mining regulation. Sustained power deficits would undermine even well-structured manufacturing agreements.
5. Wuxi Jiangnan Cable negotiations outcome. A signed memorandum of understanding or investment agreement following the September 2026 visit would be a concrete signal that policy ambition is converting to operational commitment. A stalled or abandoned negotiation would raise questions about Zambia’s capacity to attract fabrication-stage investment.

The September 2026 dual milestones, the waiver expiry and the Wuxi Jiangnan Cable visit to Lusaka, represent the most immediate near-term test of whether Zambia’s beneficiation policy is translating from architecture into action.

Zambia’s processing gamble is credible but far from guaranteed

Zambia has assembled a more sophisticated beneficiation toolkit than most peer countries. The combination of statutory duties, discretionary waivers, modernised mining law, a state co-investment vehicle, and proactive engagement with downstream manufacturers creates a coherent policy architecture with multiple points of leverage.

The gap between architecture and operational manufacturing plants remains large. Power reliability, transport infrastructure, and specialised skills are structural constraints that policy frameworks alone cannot resolve, and the next 12-24 months will determine whether negotiation outcomes and infrastructure investment close that gap.

The risk is asymmetric. If Zambia’s approach works, the upside is a fully realised domestic copper value chain that captures substantially more value for the country and its partners. If waivers are granted without conditionality and manufacturing deals stall, the result is a policy regime that talks loudly but changes little.

For mining investors globally, the implication is clear: Zambia is now a jurisdiction where engagement with policy priorities is a prerequisite for licence security and operational continuity, not an optional relationship-management exercise.

Institutional capital rotating into mining at scale, with mining ETF assets under management rising 136% to US$87.4 billion in twelve months, reflects a broader repricing of resource jurisdictions that makes Zambia’s regulatory posture more consequential: investors now have meaningful exposure to copper-producing nations through diversified vehicles, raising the stakes for any policy regime that affects operating margins.

This article is for informational purposes only and should not be considered financial advice. Investors should conduct their own research and consult with financial professionals before making investment decisions. Forward-looking statements regarding Zambia’s policy outcomes and manufacturing negotiations are subject to change based on regulatory decisions, infrastructure developments, and bilateral negotiation results.