KEY INFORMATION DOCUMENT Purpose This document provides you with key information about this investment product. It is not marketing material. The information is required by law to help you understand the nature, risks, costs, potential gains and losses of this product and to help you compare it with other products.Product CT UK High Income Trust PLC - Ordinary Shares ISIN: GB00B1N4G299 This Key Information Document (KID) is issued and approved by Columbia Threadneedle Investment Business Limited. Authorised and regulated in the UK by the Financial Conduct Authority. Date of Production: 23/12/2024 What is this product? What are the risks and what could I get in This product is a closed-end Investment Company incorporated in return? Scotland and listed on the London Stock Exchange. The Company The summary risk indicator is a guide to the level of risk of this product invests predominantly in UK equities (ordinary shares of companies compared to other products. It shows how likely it is that the product listed on the UK stock market) and equity related securities (for example will lose money because of movements in the markets. subscription rights and warrants) of companies across the market capitalisation spectrum, with the objective to provide an attractive return to shareholders each year in the form of dividends and/or capital repayments, together with prospects for capital growth. The portfolio 1 2 3 4 5 6 7 holds approximately 40 holdings at any given time and no single investment in the portfolio may exceed 10% of the Company’s gross Lower riskHigher risk assets at the time of purchase. In addition, the Manager expects few individual holdings to exceed five per cent of the Company’s gross The risk indicator assumes you keep the product for five assets at the time of purchase. There are no maximum levels set foryears. The actual risk can vary significantly if you sell exposures to sectors. Derivatives (an investment contract between the! your shares at an early stage and you may get back lessthan you invested. You may not be able to sell your Company and a counterparty the value of which is derived from one or more underlying assets) may be used for income enhancement and shares easily or you may have to sell at a price that efficient portfolio management. Borrowings would normally fall within asignificantly impacts on how much you get back. You will range of 0% to 20% of gross assets. The Company has a £15 million incur costs in buying and selling your shares. revolving credit facility which is available to 28 September 2025. This will magnify any gains or losses made by the Company.We have classified this product as 5, which is a medium high risk class. This rates the potential losses from future performance at a medium The ordinary shares are intended for UK retail, and professionally- high level. In periods when market conditions are poor, the value of advised private client, investors who plan to stay invested for at least five your investment may fall and may impact the amount you get back in years. Ordinary shares carry a right to participate in the dividends paid the long term. by the Company. This product is designed to form part of a portfolio of The value of your investment can go down as well as up. You may lose investments. some or all of your investment. This product does not provide any protection from future market conditions and regulatory changes. There Subject to shareholder continuation votes, in the event that the net asset can be no assurances that the objective of the Company will be value total return performance of the Company is less than that of the achieved or that dividend distributions will continue to be made. The total return of the FTSE All-Share Index over the relevant three year use of gearing can enhance returns to investors in a rising market, but period, the Company’s life is not time limited. if the market falls the losses may be greater. Page 1 of 3 Investment performance information The main factors likely to affect future returns are the UK and European economic outlook which will be a key driver for corporate earnings and interest rates which will influence stock valuations. Aside from these and other macro-drivers, stock selection will be the main driver of returns. Asset allocation between markets and sectors will also contribute to the future returns. Gearing will also make a difference given the Company's policy to use this strategically. An appropriate comparator benchmark for reviewing performance is the FTSE All-Share Index. However, as the investment trust is actively managed, it is not constrained by this benchmark and has significant freedom to invest in a portfolio that is materially different to the benchmark’s own composition. As such the performance and volatility of the investment trust will vary significantly to that of the benchmark. What could affect my return positively? The conditions that would be conducive to the investment trust generating positive returns would be a positive outlook for the UK and European economies, lower interest rates and political stability. Good stock selection and asset allocation, as well as the impact of gearing can also impact returns positively. What could affect my return negatively? The conditions that would be conducive to the investment trust generating lower returns or losses would be a deterioration in the outlook for the UK and European economies, higher interest rates and negative geopolitical events. Poor stock selection and asset allocation, as well as the impact of gearing can also impact returns negatively. If the investment trust is sold under severely adverse market conditions, you may increase the risk of receiving back significantly less than you invested.What happens if the Company is unable to pay out? The Company's shares are listed on the London Stock Exchange. Should the Company be liquidated, the amount you receive for your holding will be based on the value of assets available for distribution after all other liabilities, but before shareholders, have been paid. Shareholders in this company do not have the right to make a claim to the Financial Services Compensation Scheme in the event that the Company is unable to pay out. What are the costs? Costs incurred in the running of the Company are disclosed within the Company’s latest Annual Report and, in accordance with the Association of Investment Companies guidance, are disclosed monthly within the Company Factsheet as an Ongoing Charge. The latest published Ongoing Charge for the Company (expressed as a percentage of average net assets) was 1.08%. For the avoidance of doubt this charge does not represent an additional cost to you in acquiring shares in the Company, it represents the operating costs borne by the Company that are reflected within the Company’s Net Asset Value and ultimately in the Share Price you pay in acquiring the Company’s shares. Depending on how you acquire or dispose of shares in the Company, you may be charged additional costs, these may include broker commission, platform fees, advisory fees and/or stamp duty. Details of any additional costs, together with the impact that all costs will have on your investment over time, will be provided by your chosen platform or adviser. This disclosure has been prepared with reference to the FCA’s statement on 19 September 2024 that Investment Trusts are no longer required to follow the historical cost disclosures under the PRIIPs Regulation. It therefore does not seek to comply with the requirements of the UK PRIIPS Regulation in all respects.’ Page 2 of 3 How long should I hold it and can I take money out early? Recommended holding period: 5 years There is no minimum or maximum required period for investors to hold shares in this product, but the shares may not be suitable for investors intending to hold them for less than five years. Investors may sell their shares at any time without penalty through a broker, private investor plan administrator or adviser. The sale price will be determined at arms’ length based on trading prices at the time on the London Stock Exchange and will not necessarily be equal to the net asset value per share of CT UK High Income Trust PLC. The share price is updated regularly on the website www.ctukhighincome.co.uk. Market values may go down as well as up over short and long periods and so investors should invest with a view to long term returns. The amount investors get back will be influenced by the market factors at the time of sale and by the charges levied by the broker/plan manager. If you sell your shares before the end of the recommended holding period you may increase the risk of receiving back less than you invested. How can I complain? CT Plans: If you have concerns about this product or service and have purchased it through a CT Plan, you can contact us in writing at Investor Relations Manager, Columbia Threadneedle Investment Business Limited, PO Box 11114, Chelmsford, Essex, CM99 2DG, via email at investor.relations@columbiathreadneedle.com, or by phone: 0345 601 3313 (9am - 5pm weekdays). Direct Shareholders: If you have concerns about this product and have purchased it through another provider, then please contact the Company Secretary by writing to them at CT UK High Income Trust PLC, Quartermile 4, 7a Nightingale Way, Edinburgh, EH3 9EG, or by phone 0131 573 8300 . Should you have a complaint about any transaction through your broker, plan administrator or adviser, you should contact that person or organisation directly. As a shareholder of CT UK High Income Trust PLC, you do not have a right to complain to the Financial Ombudsman Service (FOS) in the UK about the management of CT UK High Income Trust PLC or the product. Other relevant information You may obtain further information about CT UK High Income Trust PLC from the website www.ctukhighincome.co.uk, including: this document; the last five years’ annual and interim reports; the Investor Disclosure Document; and the latest share price. Alternatively, you may write to the Company Secretary, CT UK High Income Trust PLC, at: Quartermile 4, 7a Nightingale Way, Edinburgh, EH3 9EG, UK. Page 3 of 3