China's aviation regulator said on Friday that there is still a huge amount of testing to be done for the home-grown narrowbody C919 aircraft to be certified, raising doubt over planemaker COMAC's year-end target.

BEIJING/SYDNEY (Reuters) -China's aviation regulator expects airlines will resume commercial operations with the Boeing Co 737 MAX by the end of this year or the beginning of next year, an official said on Friday.

(Reuters) -Tesla Inc Chief Executive Elon Musk has sold another 934,091 shares of the electric vehicle maker worth $1.01 billion to meet his tax obligations related to the exercise of options to buy 2.1 million shares, regulatory filings showed on Thursday.

China's Kaisa Group Holdings Ltd said on Friday it had failed to secure the minimum 95% approval needed from its offshore bondholders to extend the maturity of a $400 million note that is due next week, raising the risk of a default.

Tesla Inc Chief Executive Elon Musk has sold another 934,091 shares of the electric vehicle maker worth $1.01 billion, U.S. securities filings showed on Thursday.

China's Kaisa Group Holdings Ltd on Thursday said its offer to extend the maturity of a $400 million bond has lapsed after it did not receive the minimum 95% approval from the bondholders.