** Shares of cannabis stocks rise after Treasury Secretary
Janet Yellen said regulators are looking for solutions to
banking law prohibitions against serving marijuana industry
** Banks have been unwilling to do business with companies
that sell marijuana or related products, fearing they could run
afoul of federal laws
** Curaleaf Holdings Inc CURA.CD , Canopy Growth Corp
WEED.TO , Cronos Group Inc CRON.TO and Tilray Brands Inc
TLRY.O rise 2.6%-11%
** AdvisorShares Pure US Cannabis ETF MSOS.K up 3.5%
(Reporting by Arshreet Singh in Bengaluru)
((Arshreet.Singh@thomsonreuters.com))