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National security and infrastructure investment review

We're seeking views on how government can best ensure that investments and takeovers do not raise national security concerns.

Last fetched 03 May 2026 · gov.uk
Detail

This green paper is the result of the government’s review of the Enterprise Act 2002 and its powers in relation to foreign investment and national security. It sets out the approach the government proposes to take in both the short and long term. We will use your responses to the green paper to develop these proposals further.

The consultation is split into 2 parts.

Part 1

In the short term, we propose to amend the turnover threshold and share of supply tests within the Enterprise Act 2002. This is to allow government to examine and potentially intervene in mergers that currently fall outside the thresholds in 2 areas:

  • the dual use and military use sector
  • parts of the advanced technology sector

Part 1 of the consultation lasts 4 weeks, closing on 14 November 2017.

Part 2

The second part of the green paper seeks views about potential long-term reforms that government should take to its approach to ensuring that investments and takeovers cannot raise national security concerns.

Part 2 of the consultation lasts 12 weeks, closing on 9 January 2018.

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