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Significant influence meaning

What does Significant influence mean?
In practice, significant influence describes an investor’s ability to participate in an investee’s key financial and operating policy decisions without having control or joint control over those policies. The term is defined in accounting standards used across the UK and Ireland (UK‑adopted IAS/IFRS, notably IAS 28, and UK/Irish GAAP, FRS 102). It is central to classifying an investee as an associate and to applying the equity method in consolidated financial statements. A rebuttable presumption of significant influence arises where the investor holds, directly or indirectly (for example through subsidiaries), 20% or more of the voting rights. Below 20%, significant influence is presumed not to exist unless evidence demonstrates otherwise. Indicators include board representation, participation in policy‑making, material transactions between the parties, interchange of key management, or provision of essential technical information. This concept is broadly consistent across England and Wales, Scotland, Northern Ireland and Ireland. Do not confuse it with “significant influence or control” in the UK Persons with Significant Control regime under the Companies Act 2006, which has separate statutory guidance and purposes. In legal and transactional work, assessing significant influence affects group reporting, related party disclosures, shareholder agreements and due diligence.
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View the related Checklists about Significant influence

CHECKLISTS
Global merger control: jurisdictions requiring notification of non-controlling minority shareholdings (checklist and thresholds)

Non-controlling minority shareholdings This Checklist identifies the jurisdictions worldwide where acquisitions of non‑controlling minority shareholdings must be notified, provided the other jurisdictional thresholds are satisfied. In this context, ‘non‑controlling minority shareholdings’ means any degree of influence falling short of what the EU Merger Regulation terms ‘decisive influence’—namely, the capacity to exercise a significant level of control over an undertaking’s strategic commercial behaviour. That influence can be exercised through a variety of routes, including share ownership, voting rights (in particular, veto rights), or contractual arrangements, and does not necessarily involve holding a majority shareholding...

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CHECKLISTS
Supply Chain Resilience: Legal Due Diligence and Contracting Checklist covering Demand, Mapping, Contingency, Pricing, Supplier Insolvency, Fraud, ESG and Cyber Risks

This Checklist outlines the principal risks and points to weigh when taking steps to build a resilient supply chain, covering demand, communication, mapping, supplier requirements, contingency plans, supplier agreements, supplier distress and insolvency, fraud, and de‑risking. It accompanies Practice Note: Securing a resilient supply chain. Demand In relation to demand, have you: Evaluated the possible effects of a major supply chain event (eg geopolitical instability, a pandemic, or product shortages) on your customers/end users? Considered how a significant supply chain event could influence your distribution network and adjusted it as necessary? Assessed whether investing in technology (eg AI, digital twins, crisis and scenario modelling) could deliver solutions to sharp changes in supply and demand? Communication In relation to communication, have you: Kept strong, regular dialogue with key suppliers, logistics partners and end customers about what you are doing and the steps you are taking? ...

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NEWS
US courts to rule on enforcement of intra‑EU and other high‑value arbitral awards: Spanish solar, Crystallex/Citgo, Yukos, Sulu v Malaysia

Spanish solar cases The DC Circuit is set to decide whether to enforce arbitral awards totalling about US$386m against Spain after it scaled back economic incentives for renewable energy projects, a ruling with significant implications for EU investors while the EU’s courts persist in rejecting enforcement of intra‑EU awards. The court will examine if enforcement is possible even though Europe’s highest court has concluded that the arbitration clause in the Energy Charter Treaty is invalid. The DC Circuit’s judgment will influence not only these awards but also more than a dozen further awards outstanding against Spain, as well as any previous and potential future arbitral awards granted to EU investors against EU Member States. Whatever the appeals court decides, the matter is very likely to be queued for a challenge before the US Supreme Court. In these proceedings, Dutch subsidiaries of US-based NextEra Energy Inc, Luxembourg-based 9REN Holding SARL and Blasket Renewable Investments LLC seek enforcement of their awards against Spain, together valued at approximately €359.3m (around US$386m). Blasket’s...

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NEWS
Life sciences law update: UK and EU IP, medicines advertising, medical devices (MDR/IVDR), data/AI, MHRA/EAMS and naloxone changes, research governance and ethics

In this issue: Intellectual property Medicines advertising Medical devices Data protection in life sciences Pharmaceuticals—regulatory framework Research and development Daily and weekly news alerts New and updated content Dates for your diary Trackers Useful information Intellectual property Ian Jones, partner at Gill Jennings & Every LLP, reviews upcoming changes to UK marketing authorisations (MAs) and supplementary protection certificates (SPCs) following the UK Intellectual Property Office’s statutory guidance on SPCs for medicines, set to apply from 1 January 2025. On 31 October 2024, the UK IPO issued guidance detailing significant updates to MAs for medicines in the UK, grounded in the Windsor Framework, which will come into force on 1 January 2025. These reforms will influence existing and prospective SPCs, as well as the types of authorisation used to support SPC applications. See News Analysis: Changes to marketing authorisations and SPCs in the UK. The Patents Court has revoked two mRNA patents related...

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NEWS
UK and EU corporate weekly highlights: PSC ‘significant influence or control’ guidance, FCA UKLR clarifications, and EU follow-on/growth prospectus reforms—12 March 2026

In this issue: Company disclosures, records and registers Equity capital markets Daily and weekly news alerts New and updated content Dates for your diary Trackers Useful information Company disclosures, records and registers DBT issues updated statutory guidance on PSC ‘significant influence or control’ for companies and LLPs The Department for Business and Trade (DBT) has released updated statutory guidance clarifying the meaning of ‘significant influence or control’ for Schedule 1A to the Companies Act 2006 (CA 2006), in relation to the register of people with significant control (PSC register). Guidance has been produced for both companies and Limited Liability Partnerships (LLPs). See: LNB News 05/03/2026 28. Equity capital markets FCA Quarterly Consultation No 51—clarificatory amendments to the UKLR The Financial Conduct Authority (FCA) has published Quarterly Consultation Paper No 51, CP26/8, following reforms to the UK public markets framework and the introduction of the UK Listing Rules (UKLR) sourcebook, alongside the Prospectus Rules:...

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PRACTICE NOTES
UK LLP PSC register: identifying PSCs and RLEs, significant influence, fund structures, investigation duties, and Companies House filings (including ECCTA 2023 reforms)

People with significant control (PSC) regime The architecture of the people with significant control (PSC) regime, which first commenced on 6 April 2016, is contained in Part 21A of the Companies Act 2006 (CA 2006). Its purpose is to tackle worries about the lack of transparency in corporate ownership, where historically the register captured only the legal holder of shares, not always the beneficial owner. By requiring a PSC register, more precise and up‑to‑date details are available about who ultimately owns and directs companies and other bodies, and this information is made public via the central register at Companies House and remains accessible to the public. It assists prospective investors in their decision‑making. It likewise aids law enforcement bodies with money laundering enquiries. LLPs formed under the Limited Liability Partnerships Act 2000 must keep a record of persons with significant control over the LLP under the Limited Liability Partnerships (Register of People with Significant Control) Regulations 2016, SI 2016/340 (the LLP Regulations), as amended by the Information about People...

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PRACTICE NOTES
UNCITRAL Arbitration Rules: practitioner overview of ad hoc and investor-State cases - 1976 and 2010 frameworks, Transparency and Expedited Rules, appointing authority/PCA role, procedure, awards and costs

This Practice Note provides an introduction to the overall structure of the United Nations Commission on International Trade Law Arbitration Rules (the UNCITRAL Rules). The UNCITRAL Rules occupy a significant role in contemporary arbitration practice. They are crafted for ad hoc international commercial arbitrations—proceedings not administered by an arbitral institution and, typically, not conducted under that institution’s rules. The Rules may likewise be employed in investor–state arbitrations commenced under a treaty, such as a bilateral investment treaty, where the treaty permits arbitration conducted under those rules. Unless the parties stipulate otherwise, the UNCITRAL Rules govern arbitration agreements concluded on or after 15 August 2010, ie the date the revised Rules took effect. The earlier 1976 UNCITRAL Rules continue to apply to all arbitration agreements entered into before that date. Both the 1976 and 2010 UNCITRAL Rules are separate from UNCITRAL’s Model Law on International Commercial Arbitration, adopted in 1985 and revised in 2006, which has been adopted (often with modifications) by more than 50 jurisdictions—see Practice Note: The UNCITRAL...

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PRACTICE NOTES
UK Television Format Rights: Copyright Subsistence and Infringement, Originality, Confidentiality and Passing Off, Multi-tier IP Protection, and Key Acquisition and Licensing Issues

What is a television format? A television format is the blueprint or underlying premise for a television programme or a series of programmes, expressed in a distinct manner and usually built around signature elements (for example, music, branding, or a specific setting) that are replicated in each episode. Within the unscripted arena, game show formats are especially prevalent, while partially scripted reality series such as ‘Love Island’ and ‘Big Brother’ demonstrate how successful formats can be exploited in the UK and also tailored for use in international markets. ‘Downton Abbey’ exemplifies a successful scripted series, founded on an original format developed by Julian Fellowes. Fresh television formats can also arise where the characters, plots, and environments of an existing work are transformed so extensively that a new, original format is created. Notable instances include the US series ‘Elementary’ and the UK’s ‘Sherlock’, both of which diverge substantially from Arthur Conan Doyle’s Sherlock Holmes. Format rights carry significant commercial and creative importance in the UK and abroad and can...

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