First Minister Carwyn Jones's San Francisco trade mission
First Minister Carwyn Jones says he hopes to open doors for Welsh businesses during a four-day trade mission to San Francisco.
Representatives of 18 IT, science and creative businesses arrived in California with him on Monday.
Mr Jones will meet political leaders and Silicon Valley businesses.
It is the latest in a series of overseas trips, which have prompted political opponents to call for proof of how they benefit the Welsh economy.
Political correspondent Aled ap Dafydd reports.