0927 GMT - ArcelorMittal faces a small downside risk to its third-quarter earnings due to being unable to safely restart its Ukrainian site, J.P. Morgan's Dominic O'Kane says. The company will record a non-cash impairment of around $1 billion, which is not expected to impact earnings before interest, taxes, depreciation and amortization. However, JPM sees a risk of higher EBITDA losses in the "other" segment, which includes the Ukraine operation. The contribution of the site to group profit is relatively small, the analyst notes. Wider disruption at Ukrainian steelmaking sites could positively impact European steel prices, JPM noted. Shares are up 2.2%.