...February 15, 2023 JOHANNESBURG (S&P Global Ratings) Feb. 15, 2023--S&P Global Ratings said today that it has taken rating actions on corporate issuers rated at the same level as or higher than Nigeria under its criteria for rating issuers above the sovereign. The rating actions follow the outlook revision on the foreign currency rating on Nigeria (see "Nigeria Outlook Revised To Negative From Stable On Weakening Fiscal And External Metrics; 'B-/B' Ratings Affirmed," published Feb. 3, 2023, on RatingsDirect). We also considered that the impact of political and regulatory risks, potential depreciation of the Nigerian naira versus other global currencies, and oil price volatility could weaken these issuers' earnings prospects and lead to higher leverage. Specifically, we: - Raised our ratings on IHS Holding Ltd. (IHS) and its senior unsecured notes to 'B+' from 'B'. The outlook is negative. - Affirmed our '##-' ratings on MTN Group Ltd. and Mobile Telephone Networks Holdings Ltd. and maintained...