BUZZ-Platinum producers: reaping benefits of weaker rand
** Platinum producers outperform peers in broader mining sector as South Africa's rand stays near 5-week lows vs dollar.
** Currency remains weak after Moody's downgrade of country's credit rating on Thursday.
** Impala Platinum (Other OTC: IMPUY - news) , Anglo American Platinum & Lonmin, world's top three producers, rose 1.8 pct to 5.3 pct.
** STOXX 600 Basic Resources sector up 1.5 pct.
** Platinum producers often benefit from a softer rand because it reduces their costs. (RM (LSE: RM.L - news) : tricia.wright1.thomsonreuters.com@reuters.net RM:silvia.antonioli.thomsonreuters.com@reuters.net)