Towers of Strength Q2 2019 Results

Glossary of Terms Of EBITDA, EBITDA margin and other non-IFRS financial measures are used by Group management to monitor the underlying performance of the business and the operations. EBITDA, EBITDA margin and other non-IFRS financial measures are used by different companies for differing purposes and are often calculated in ways that reflect the circumstances of those companies. You should exercise caution in comparing EBITDA, EBITDA margin and other non-IFRS financial measures as reported by us to EBITDA, EBITDA margin and other non-IFRS financial measures as reported by other companies. EBITDA, EBITDA margin and the other non-IFRS financial measures described in this document are unaudited and have not been prepared in accordance with IFRS or any other generally accepted accounting principles. In addition, the presentation of these measures is not intended to and does not comply with the reporting requirements of any regulatory authority and will not be subject to review by aby regulatory authority; compliance with such requirements may require us to make changes to the presentation of this information. Capital expenditure ("Capex"): Any expenditure which would be treated as capital expenditure in the financial statements in accordance with applicable accounting principles including advance payments for capital expenditure and excluding any non-cash expenditure. Colocation Rate: Refers to the average number of tenants per tower that is owned or operated across a tower portfolio at a given point in time, excluding managed services. Consolidated Leverage: Aggregate outstanding indebtedness on a consolidated basis (excluding subordinated shareholder debt), calculated with operating leases treated in accordance with IFRS effective at the time of issuance of the 2021 Senior Notes Consolidated Leverage Ratio: Ratio of Consolidated Leverage to L2QA EBITDA, calculated with operating leases treated in accordance with IFRS effective at the time of issuance of the 2021 Senior Notes EBITDA: Profit or loss for the period excluding the impact of finance income, finance cost, fair value through profit or loss, depreciation and amortisation, and provision for or benefit from taxes, less other income, plus other expenditures that are sufficiently large and unusual as to distort comparisons from one period to the next. EBITDA is an indicator of the financial performance of our core business. EBITDA is a component of the calculation that has been used by our lenders to determine compliance with certain covenants under our debt facilities. EBITDA is not intended to be an alternative measure of operating income or gross profit margin as determined in accordance with IFRS. EBITDA margin: EBITDA divided by revenue, expressed as a percentage. Group: IHS Netherlands Holdco B.V. and each of its direct and indirect subsidiaries. L2QA EBITDA: EBITDA for the last two quarters on an annualised basis. Lease Amendments: Refers to the installation of additional equipment on a site or the provision of ancillary services for an existing tenant. Towers: Refers to ground-based towers, in-building solutions, rooftop and wall-mounted towers and cells-on-wheels, each of which are constructed to support wireless transmission equipment. We measure the number of towers in our portfolio at a given time by counting the number of towers that we own or operate with at least one tenant. The number of towers in our portfolio excludes towers for which we provide managed services. Tenants: Refers to the number of distinct customers that have leased space on each tower that we own across our portfolio.. VPY: Versus prior year Q2 | June YTD 2019 Unaudited Results IHS Towers of strength 13

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