China’s Export Controls: TBMs and India’s Supply Chain

Why in the news

According to a report dated 8 November 2026, DPIIT has begun discussions with ministries on increasing domestic production of 100 important intermediate and capital goods. This is an initiative reported on the basis of an official's account, not a final notified scheme. Chinese controls on TBMs and solar technology form its pre-existing background.

The basics first

• Tunnel boring machine (TBM): A heavy machine that cuts soil or rock to build long tunnels. It is used for metros, bullet trains, hydropower and road-rail tunnels. A rotating cutter head at the front breaks rock, a screw conveyor removes debris, and a segment erector installs precast wall segments.
• Export control: A government permission requirement for sending a good, technology or component abroad. It is not a complete ban; exports may remain possible through licensing or registration, but time, cost and uncertainty increase.
• Dual-use item: An item with possible civilian and military uses. According to China's ministry, these items have clear dual-use characteristics (Source 2).
• Supply chain: The complete chain from raw material to finished product. Restrictions on one link can halt industries.

Scope of Announcement 50/2026

• Full-face tunnel boring machines (code 2B906): Earth-pressure-balance and slurry-shield machines, and rock TBMs including open, single-shield and double-shield machines.
• Specially designed components (code 2A906): Cutters and cutter heads, screw conveyors, segment erectors, main drive systems and other major units.
• Remanufacturing technology (code 2E906): Special technology for remanufacturing these machines and components.
• Two other categories: Walking excavators (2B904) with any of these capabilities: crossing obstacles higher than 1.2 metres, travelling in water deeper than 1.5 metres, crossing trenches wider than 3 metres, or climbing slopes steeper than 40 degrees; and high-altitude wet-shotcrete machines (2B903) designed for elevations above 3,000 metres that meet all the technical specifications in the announcement. Related technologies (2E904 and 2E903) are also covered (Source 1).

How will the controls apply?

• Exports to "sensitive countries and regions" in dispute with China require a licence; unlicensed exports are prohibited. The announcement names no country (Source 1).
• For all other countries, exporters can register information and obtain an export certificate. Exporters and end users must undertake not to supply these items to the disputed countries without a licence. Organisations and individuals outside China also cannot make such transfers without a licence (Source 1).
• Customs declarations must mark controlled goods as "dual-use items" and provide the control code. Goods may be detained until checks on a suspicious declaration are complete (Source 1).
• The ministry's spokesperson said licence applications would be reviewed according to law and those meeting the conditions would be approved. Adjustments to controls on dredger-related items were also announced alongside TBMs (Source 2).

Recent developments

• According to reports, an editorial in Chinese state media said export applications for legitimate civilian projects would be approved. This is a statement by one side, not a formal policy change (Source 3).
• According to the report, Goyal said India would build its own TBMs if necessary (Source 3). This is a reported ministerial statement, not a notified government scheme.
• Reports also say China is planning restrictions on capital goods and technology for the solar sector (Source 3).

Possible effects on India

According to reports, many large Indian tunnelling projects depend on Chinese-made TBMs and parts. The report identifies Mumbai-Ahmedabad high-speed rail, several metro projects, Himalayan hydropower tunnels and border-road tunnels as areas where delays in machines, parts and technical services could raise costs and extend timelines (Source 3). Some foreign companies' machines are also made in Chinese factories, so the effect is not limited to Chinese brands. This analysis is based on reports; the announcement names no country or project.

The wider picture: export controls as a geoeconomic tool

Since 2023, China has introduced a series of export controls on minerals and technology: gallium-germanium, graphite, and rare-earth-related controls in 2025. TBM controls are being seen as part of this trend. Reports say rare-earth magnet supplies disrupted India's vehicle industry last year and the problem is still not fully settled (Source 3). According to the report, the government has responded with steps towards incentives for domestic rare-earth permanent-magnet manufacturing and polysilicon; we have not seen official confirmation of these measures (Source 3). Separately, China issued a draft revision of its technology export catalogue on 16 October 2026, adding 40 items (14 prohibited and 26 restricted). Comments were invited until 15 November 2026 (Source 4). This is a separate technology-transfer issue; Announcement 50 concerns machines and parts. Do not conflate them.

Options before India

• Domestic manufacturing: Domestic production of heavy machines such as TBMs is still limited; accelerate joint ventures and technology transfer.
• Supply diversification: Buy directly from manufacturers in Germany, Japan and other countries, reducing dependence on units made in China.
• Repair and remanufacturing capacity: Maintain existing machines and domestic stocks of parts.
• Advance planning for strategic projects: Assess machine and component needs for important tunnelling projects in advance and procure on time.

The challenge now covers 100 important items

According to the report of 8 November 2026, the Department for Promotion of Industry and Internal Trade (DPIIT) has begun discussions with relevant ministries on increasing domestic production of 100 intermediate and capital goods across sectors. This initiative is reported on the authority of a senior government official. The available source does not provide a final notified product list, an approved budget or evidence that production has started for all items. Do not treat it as a fully approved scheme.

The report mentions import dependence in tunnel boring machines, solar-manufacturing links and selected petrochemicals. TBMs are already covered in this article; the broader question raised by the new initiative is how much real dependence falls if equipment, materials and technology still come from abroad despite domestic assembly of the final product.

Intermediate and capital goods

• An intermediate good is an input in making another product, such as resin used in plastic products.
• A capital good creates or operates production capacity, such as a manufacturing machine. A high price alone does not make an item a capital good; its use matters.
• The solar value chain runs from polysilicon to ingots, wafers, cells and modules. An ingot is a large block of solid silicon; a wafer is a thin slice cut from it. More module-assembly capacity does not itself prove self-reliance in wafers, cells or the machines used to make them. The report's industry estimates are not treated here as government-certified current capacity.
• Petrochemicals are products of oil- and gas-based chemical value chains. The report includes polymers such as PVC, polyethylene and polypropylene, used in pipes, packaging and other goods. A shortage of one input can affect several downstream industries.

Proposals and operative controls are different

China's Ministry of Commerce distinguishes proposed controls on 40 new technologies in the export catalogue revision from an interim registration arrangement during consultation. Calling this a final export ban applying to all solar products would be wrong. It is also legally separate from the previously announced controls on TBM machines and parts.

Self-reliance, not isolation

Policy priorities should consider not merely total import value, but supply concentration, the time needed to find alternatives, technological complexity and the cost of production stoppages. Making every item domestically is not always the cheapest route. Building technology, skills, testing and repair capacity in necessary links while diversifying supply through other reliable sources can help.

The test for incentives: If support is provided, measure its duration, cost, quality and domestic value addition. Final assembly in a local factory is not complete technological indigenisation. Without competition, time-bound reviews and environmental compliance, permanent protection can pass the cost of expensive inputs to downstream industries and consumers. These are policy options, not government decisions announced in this report.

The way forward

• Short term: Check contracts, licences and end-use conditions before 18 November; pursue government-level diplomatic dialogue.
• Medium term: Diversify suppliers, build domestic capacity and stock components.
• Long term: Invest in critical-mineral processing and partnerships with friendly countries to increase supply-chain resilience.

Mains Practice Question

Self-reliance in important intermediate and capital goods means more than domestic assembly of the final product. Analyse in the context of supply-chain resilience. (250 words, 15 marks)

Answer Outline

• Introduction: Define intermediate and capital goods and explain the risk of import concentration.
• Body: Use TBMs, the solar value chain and petrochemicals to explain upstream dependence. Discuss domestic technology, skills, testing, repair, source diversification and cost competitiveness. Do not describe a proposed policy as an approved scheme.
• Conclusion: Recommend combining capacity in selected important links with open, diversified trade.

Sources

• 8 November 2026: Report on indigenisation of 100 important items
• China’s Ministry of Commerce: Proposed revision of the technology export catalogue and interim registration
• China’s Ministry of Commerce and General Administration of Customs, Announcement No. 50 of 2026 (Chinese), 19 October 2026
• China’s Ministry of Commerce, spokesperson’s questions and answers (Chinese), 19 October 2026
• The Indian Express, 7 November 2026
• Linklaters, 4 November 2026

Download This Article: PDF