Shares of Rainbow Rare Earths have surged after the company announced it has entered an option agreement with TechMet. This agreement grants TechMet the right to invest $50 million in Rainbow's Phalaborwa rare earths project in South Africa. At 0825 GMT, shares were up 14% at 15.5 pence, an increase of 1.9 pence. According to Rainbow Rare Earths, this option agreement allows … [Read more...] about Rainbow Rare Earths Secures $50 Million Investment for Phalaborwa Project