BUZZ-KAZ minerals: boosted by Credit Suisse upgrade
** Shares (Berlin: DI6.BE - news) in KAZ Minerals (LSE: KAZ.L - news) up 3.5 pct
** Credit Suisse (IOB: 0QP5.IL - news) upgrades stock to "outperform" from "neutral," cites contributing cash flow from Bozshakol mine
** Adds, Aktogay mine is now ramping up at an even faster rate and funding risk is now limited even under bearish copper price assumptions
** Brokerage raises target price to 630p from 370p
** Up to Thursday's close, the stock had risen close to 37 pct YTD