BRIEF-Tsinghua unigroup says it never participated in bid for Toshiba chip business

March 30 (Reuters) - Tsinghua Unigroup:

* Says media reports of it bidding for Toshiba Corp's

chip business are pure rumours and groundless,

according to a statement on its website

* Says it "never participated in the bid and related


Source text in Chinese:

Further company coverage:

(Reporting by Sijia Jiang)