** Shares in China's education firms tumble, as Beijing
tightens its grip on the privately-run preschool business
** Leading the dive, Tianli Education International Holdings
1773.HK plummets as much as 33.3 pct, on track for its worst
day in two months
** Hong Kong-listed China 21st Century Education Group
1598.HK and China Maple Leaf Educational Systems 1317.HK
both slide about 20 pct
** Preschool education operator Vtron Group 002308.SZ
tumbles the maximum allowed 10 pct, leading losses in Chinese
players
** An index tracking education firms on the mainland
.CSI930717 slips 0.2 pct
** China will not allow private kindergartens to go public
as individual entities or as part of asset packages, the
government says on Thursday, adding listed companies cannot
invest in or buy private kindergartens through share sales or by
cash urn:newsml:reuters.com:*:nH9N1XO00F
** The policy tightening sends U.S.-listed provider of early
childhood services Ryb Education Inc RYB.N tumbling more than
50 pct
((luoyan.liu@thomsonreuters.com; Reuters Messaging:
luoyan.liu.thomsonreuters.com@reuters.net))