** Shares in Tenaris TENR.MI fall 4.5% after the Italian steel pipe maker said on Wednesday its margins in H2 will be impacted by steel tariffs in the U.S.
** The group expects a moderate decline in sales in H2 2025 compared to the first half, and margins to be affected by the recent increase in tariff costs
**J.P.Morgan says it forecasts a 6% EBITDA slip in H2 compared to H1, expecting revenues to moderate by mid-single-digit in 2H25
** Tenaris posted a 7% drop in net sales for the second quarter of 2025, but Equita analysts say the group's Q2 results were slightly above estimates
(Reporting by Gaia Neiman)
((Gaia.neiman@thomsonreuters.com))