Looks like they are exercising the option to push
Post# of 30029
"Additionally, pursuant to the Amendment, on January 7, 2015, the Company paid to Lonza, additional cash consideration of $400,000, which extended the Original Option Agreement until February 28, 2015. The Company may also provide Lonza with additional consideration of $300,000 no later than March 2, 2015, and upon such payment, the Original Option Agreement may be extended to March 31, 2015."
http://ir.amarantus.com/all-sec-filings/conte...399_8k.htm