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1 September 2026 • Investor Presentation • ASX:OMH | Bursa:OMH (5298) OM HOLDINGS LIMITED Australia • China • Japan • Malaysia • Singapore
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Text Colour only RGB: 64, 64, 64 Black, Text 1, Lighter 25% Main message RGB: 171, 98, 14 Orange, Accent 1, Darker 25% Sub title RGB: 228, 131, 18 Orange, Accent 1 Primary colours Primary chart colours RGB: 191, 191, 191 White, Background 1, Darker 25% RGB: 235,220, 213 Brown, Accent 3, Lighter 80% RGB: 204,221, 234 Ice Blue, Background 2 RGB: 194, 149, 128 Brown, Accent 3, Lighter 40% RGB: 127, 127, 127 Black, Text 1, Lighter 50% RGB: 143, 181, 108 Orange, Accent 1, Lighter 40% RGB: 134, 86, 64 Brown Accent 3 RGB: 173, 200, 221 Ice Blue, Background 2, Darker 10% RGB: 224, 152, 120 Orange, Accent 2, Lighter 40% DISCLAIMER This presentation has been prepared and issued by OM Holdings Limited ARBN 081 028 337 (“OMH”). This presentation contains summary information about OMH. The information in this presentation does not purport to be complete or to provide all information that an investor should consider when making an investment decision. It should be read in conjunction with OMH‘s other periodic and continuous disclosure announcements lodged with the Australian Securities Exchange which are available at www.asx.com.au. This presentation contains "forward‐looking" statements within the meaning of securities laws of applicable jurisdictions. Forward‐looking statements can generally be identified by the use of forward‐looking words such as "may", "will", "expect", "intend", "plan", "estimate", "anticipate", "believe", "continue", "objectives", "outlook", "guidance" or other similar words, and include statements regarding certain plans, strategies and objectives of management and expected financial performance. These forward‐looking statements involve known and unknown risks, uncertainties and other factors, many of which are outside the control of OMH, and its directors, officers, employees, agents or associates. Actual results, performance or achievements may vary materially from any projections and forward‐looking statements and the assumptions on which those statements are based. Readers are therefore cautioned not to place undue reliance on forward‐looking statements and OMH, other than required by law, assumes no obligation to update such information. OMH makes no representation and can give no assurance, guarantee or warranty, express or implied, as to, and takes no responsibility and assumes no liability for the authenticity, validity, accuracy, suitability or completeness of, or any errors in or omissions from, any information, statement or opinion contained in this presentation. This presentation is for information purposes only and is not a financial product or investment advice or a recommendation to acquire (or refrain from selling) OMH shares. Before making an investment decision, prospective investors should consider the appropriateness of the information having regard to their own objectives, financial situation and needs and seek legal and taxation advice appropriate to their jurisdiction. OMH is not licensed to provide financial product advice, either generally or in respect of OMH shares. 2
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Text Colour only RGB: 64, 64, 64 Black, Text 1, Lighter 25% Main message RGB: 171, 98, 14 Orange, Accent 1, Darker 25% Sub title RGB: 228, 131, 18 Orange, Accent 1 Primary colours Primary chart colours RGB: 191, 191, 191 White, Background 1, Darker 25% RGB: 235,220, 213 Brown, Accent 3, Lighter 80% RGB: 204,221, 234 Ice Blue, Background 2 RGB: 194, 149, 128 Brown, Accent 3, Lighter 40% RGB: 127, 127, 127 Black, Text 1, Lighter 50% RGB: 143, 181, 108 Orange, Accent 1, Lighter 40% RGB: 134, 86, 64 Brown Accent 3 RGB: 173, 200, 221 Ice Blue, Background 2, Darker 10% RGB: 224, 152, 120 Orange, Accent 2, Lighter 40% 3 Manganese and silicon smelting company, with over 30 years of experience in the industry Powered by sustainable hydropower, with prices locked in until 2033 Dual listed on ASX and Bursa Malaysia, we offer unique exposure to the niche manganese and silicon space essential to steel and the modern world Lowest cost quartile smelter complex in Sarawak, the largest of its kind in Southeast Asia A MANGANESE & SILICON COMPANY
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Text Colour only RGB: 64, 64, 64 Black, Text 1, Lighter 25% Main message RGB: 171, 98, 14 Orange, Accent 1, Darker 25% Sub title RGB: 228, 131, 18 Orange, Accent 1 Primary colours Primary chart colours RGB: 191, 191, 191 White, Background 1, Darker 25% RGB: 235,220, 213 Brown, Accent 3, Lighter 80% RGB: 204,221, 234 Ice Blue, Background 2 RGB: 194, 149, 128 Brown, Accent 3, Lighter 40% RGB: 127, 127, 127 Black, Text 1, Lighter 50% RGB: 143, 181, 108 Orange, Accent 1, Lighter 40% RGB: 134, 86, 64 Brown Accent 3 RGB: 173, 200, 221 Ice Blue, Background 2, Darker 10% RGB: 224, 152, 120 Orange, Accent 2, Lighter 40% OUR PRODUCTS 4 Critical alloying element to steel with a diversification into electronic, chemical and solar industries Manganese Ore Manganese Alloys Silicon Alloys Manganese is the 4th most consumed metal behind iron, aluminium and copper. Steel accounts for over 90% of manganese ore consumption, with batteries a small but growing market. Products: Manganese Ore Main alloying element - Manganese • Deoxidises and desulphurises steel • Acts as a hardening agent • No known substitute and cannot be recycled • 8 manganese alloys furnaces Products: Ferro-manganese, Silico-manganese Main alloying element – Silicon • Deoxidises steel • Used in specialty electrical steels for transformers • No known substitute and cannot be recycled • 6 ferrosilicon furnaces (1) Products: Ferrosilicon (1) 2 furnaces have been idled
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Text Colour only RGB: 64, 64, 64 Black, Text 1, Lighter 25% Main message RGB: 171, 98, 14 Orange, Accent 1, Darker 25% Sub title RGB: 228, 131, 18 Orange, Accent 1 Primary colours Primary chart colours RGB: 191, 191, 191 White, Background 1, Darker 25% RGB: 235,220, 213 Brown, Accent 3, Lighter 80% RGB: 204,221, 234 Ice Blue, Background 2 RGB: 194, 149, 128 Brown, Accent 3, Lighter 40% RGB: 127, 127, 127 Black, Text 1, Lighter 50% RGB: 143, 181, 108 Orange, Accent 1, Lighter 40% RGB: 134, 86, 64 Brown Accent 3 RGB: 173, 200, 221 Ice Blue, Background 2, Darker 10% RGB: 224, 152, 120 Orange, Accent 2, Lighter 40% 5 1H2026 FINANCIAL HIGHLIGHTS Revenue US$265.2m 1H2025 US$309.3m EBITDA(2) US$87.0m 1H2025 US$19.1m Cashflow (used in)/from Operations (US$72.4m) 1H2025 US$34.8m (1) Profit/(Loss) per share 3.44 US cents 1H2025 (1.25 US cents) Loan Repayment US$50.1m 1H2025 US$205.8m Profit/(Loss) att. to owners US$26.2m 1H2025 (US$9.5)m (1) Prior year figure was adjusted to reflect tax paid in relation to the disposal of an associate. (2) EBITDA is defined as operating profit before depreciation and amortisation, net finance costs and tax. EBITDA is not a uniformly defined measure and other companies in similar industries may calculate this measure differently. Consequently, the Group’s presentation of EBITDA may not be readily comparable to other companies’ disclosures.
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Text Colour only RGB: 64, 64, 64 Black, Text 1, Lighter 25% Main message RGB: 171, 98, 14 Orange, Accent 1, Darker 25% Sub title RGB: 228, 131, 18 Orange, Accent 1 Primary colours Primary chart colours RGB: 191, 191, 191 White, Background 1, Darker 25% RGB: 235,220, 213 Brown, Accent 3, Lighter 80% RGB: 204,221, 234 Ice Blue, Background 2 RGB: 194, 149, 128 Brown, Accent 3, Lighter 40% RGB: 127, 127, 127 Black, Text 1, Lighter 50% RGB: 143, 181, 108 Orange, Accent 1, Lighter 40% RGB: 134, 86, 64 Brown Accent 3 RGB: 173, 200, 221 Ice Blue, Background 2, Darker 10% RGB: 224, 152, 120 Orange, Accent 2, Lighter 40% 6 MARKET REVIEW & FY26 PRODUCTION GUIDANCE 217 169264 294 318 311 160 - 170 FY2021 FY2022 FY2023 FY2024 FY2025 FY2026F Mn Alloy Production Volume (kmt) 131 140 140 80 190 191 FY2021 FY2022 FY2023 FY2024 FY2025 FY2026F FeSi Production Volume (kmt) 70 - 80 • Mine remains under care and maintenance while the Group undertakes a restart optionality study and evaluation to assess technical, operational and economic pathways forward. • Produced 80,194 tonnes and 168,624 tonnes of FeSi and Mn alloys respectively in 1H2026. • 14 furnaces are in operation with 6 furnaces producing FeSi and 8 furnaces producing Mn alloys. Exploration (Mn Ore) Smelting (FeSi and Mn Alloy) FeSi & SiMn Market Review • Slight recovery in FeSi prices, supported by a strong RMB, reduced Russian-origin supply, and geopolitical uncertainty stemming from the US-Iran conflict. • SiMn prices increased marginally during the first quarter on the back of stronger Mn ore prices, before correcting in the second quarter. $0 $1,000 $2,000 $3,000 $4,000 $5,000 1H2026 Avg FeSi: $1,198/ mt (+6.2% YoY) 1H2026 Avg SiMn : $933/ mt (-2.0% YoY) Source: S&P Platts USD/mt
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Text Colour only RGB: 64, 64, 64 Black, Text 1, Lighter 25% Main message RGB: 171, 98, 14 Orange, Accent 1, Darker 25% Sub title RGB: 228, 131, 18 Orange, Accent 1 Primary colours Primary chart colours RGB: 191, 191, 191 White, Background 1, Darker 25% RGB: 235,220, 213 Brown, Accent 3, Lighter 80% RGB: 204,221, 234 Ice Blue, Background 2 RGB: 194, 149, 128 Brown, Accent 3, Lighter 40% RGB: 127, 127, 127 Black, Text 1, Lighter 50% RGB: 143, 181, 108 Orange, Accent 1, Lighter 40% RGB: 134, 86, 64 Brown Accent 3 RGB: 173, 200, 221 Ice Blue, Background 2, Darker 10% RGB: 224, 152, 120 Orange, Accent 2, Lighter 40% -$50 $0 $50 $100 $150 $200 FY2022 FY2023 FY2024 FY2025 1H2025 1H2026 US$ million Group EBITDA (1) Mining Smelting Trading Associates D&A Others 7 RECORDED US$87.0M EBITDA IN 1H2026 1H2026 Revenue and Gross Profit Margin • Recorded revenue of US$265.2m, down 14% compared to 1H2025, driven by lower sales volume of Mn ores and FeSi, despite higher average selling prices realised across all products Segment Breakdown • Associates segment recorded a positive contribution of US$71.6 million, due to the sale of the Tshipi mine • Mining segment remains under care and maintenance since January 2022 US$19.1m (1) EBITDA is defined as operating profit before depreciation and amortisation, net finance costs, and tax. EBITDA is not a uniformly defined measure and other companies in similar industries may calculate this measure differently. Consequently, the Group’s presentation of EBITDA may not be readily comparable to other companies’ disclosures. 857 589 654 636 309 265 24.2% 16.1% 17.3% 9.8% 7.0% 11.0% 0% 5% 10% 15% 20% 25% 30% $0 $500 $1,000 FY2022 FY2023 FY2024 FY2025 1H2025 1H2026 GP Margin Revenue US$ million Revenue and GP Margin US$87.0m
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Text Colour only RGB: 64, 64, 64 Black, Text 1, Lighter 25% Main message RGB: 171, 98, 14 Orange, Accent 1, Darker 25% Sub title RGB: 228, 131, 18 Orange, Accent 1 Primary colours Primary chart colours RGB: 191, 191, 191 White, Background 1, Darker 25% RGB: 235,220, 213 Brown, Accent 3, Lighter 80% RGB: 204,221, 234 Ice Blue, Background 2 RGB: 194, 149, 128 Brown, Accent 3, Lighter 40% RGB: 127, 127, 127 Black, Text 1, Lighter 50% RGB: 143, 181, 108 Orange, Accent 1, Lighter 40% RGB: 134, 86, 64 Brown Accent 3 RGB: 173, 200, 221 Ice Blue, Background 2, Darker 10% RGB: 224, 152, 120 Orange, Accent 2, Lighter 40% 0.67 0.63 0.64 0.52 0.50 0.40 0 1 $0 $100 $200 $300 $400 FY2021 FY2022 FY2023 FY2024 FY2025 1H2026 US$ million Total Debt Gearing Ratio 8 POSITIVE CASH FLOW MAINTAINED Continue to focus on paying down debt • Decrease in total debt due to the voluntary early redemption of private bonds, scheduled repayment of term loans, and voluntary repayment of revolving credit facilities. Prudent Cash Management • US$72.4 million net cash used in operating activities arising from working capital movement • US$145.1 million cash inflow from investing activities arising from the Group’s disposal of its 13% effective interest in the Tshipi mine • US$47.6 million cash outflow from financing activities • Recorded cash and cash equivalent of US$38.2 million Cash Flow Activities 13.2 (72.4) 145.1 (47.6) 38.2 Dec-25 Operating Investing Financing Jun-26 (80.0) (60.0) (40.0) (20.0) 0.0 20.0 40.0 60.0 80.0 100.0 US $ million Cash Flow Movements for 1H2026
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Text Colour only RGB: 64, 64, 64 Black, Text 1, Lighter 25% Main message RGB: 171, 98, 14 Orange, Accent 1, Darker 25% Sub title RGB: 228, 131, 18 Orange, Accent 1 Primary colours Primary chart colours RGB: 191, 191, 191 White, Background 1, Darker 25% RGB: 235,220, 213 Brown, Accent 3, Lighter 80% RGB: 204,221, 234 Ice Blue, Background 2 RGB: 194, 149, 128 Brown, Accent 3, Lighter 40% RGB: 127, 127, 127 Black, Text 1, Lighter 50% RGB: 143, 181, 108 Orange, Accent 1, Lighter 40% RGB: 134, 86, 64 Brown Accent 3 RGB: 173, 200, 221 Ice Blue, Background 2, Darker 10% RGB: 224, 152, 120 Orange, Accent 2, Lighter 40% 9 OM HOLDINGS LIMITED AUSTRALIA • CHINA • JAPAN • MALAYSIA • SINGAPORE