BUZZ-Silvercorp Metals tumbles after unveiling convertible debt deal

** U.S.-listed shares of Silvercorp Metals SVM.N down 14.6% premarket to $3.46, over two-month low, as Canadian mining co seeks capital raise ** Vancouver-based firm late Tues commenced $130 mln 5-yr convertible bond deal ** Co intends to use net offering proceeds for construction of copper-gold mining projects outside of China, for exploration/development of other projects, and working capital ** With ~217.6 mln shares outstanding, SVM has ~$879 mln market cap, per LSEG data ** Through Tues close, shares up 54% YTD ** Stock's one-year high is $5.32 (Oct 21) and 52-week low is $2.22 (Feb 13) (Lance Tupper is a Reuters market analyst. The views expressed are his own) (([email protected] [email protected] 1-646-279-6380))