BUZZ-SIG: recovers on cost-savings targets
** Specialty building products supplier SIG (LSE: SHI.L - news) rise as much as 7.5 pct, among top gainers on FTSE 250 index
** Co says in a Capital Markets Day statement that it is reshaping its supply chain to reduce costs, targeting savings of about 50 million pounds
** Stock had lost 33 percent since Oct (HKSE: 3366-OL.HK - news) . 22 when co warned on profit (Reuters Messaging: roshni.menon.thomsonreuters.com@reuters.net)