** Shares of phosphate explorer PhosCo Ltd PHO.AX soar as
much as 13.4% to A$0.11 - set for best session since Feb. 22,
provided gains hold
** Co announces increase to its mineral resources estimate
at the Kef El Louz prospect at the flagship Chaketma Phosphate
Project in Tunisia urn:newsml:reuters.com:*:nASX7CRQBJ
** Says new mineral resource estimate represents a 50%
increase on the previous maiden estimate
** Trading volumes nearly thrice the 30-day average, with
about 363,000 shares changing hands so far on Tuesday
** Stock hits highest level since Feb. 23; has risen 19.6%
this year, including the day's moves
(Reporting by Harshita Swaminathan)
((Harshita.Swaminathan@thomsonreuters.com))