WASHINGTON (Reuters) - U.S.-China trade negotiations need to reach a successful end by March 1 or new tariffs will be imposed, U.S. Trade Representative Robert Lighthizer said on Sunday, clarifying there is a "hard deadline" after a week of seeming confusion among President Donald Trump and his advisers.

TORONTO (Reuters) - A top executive of China's Huawei Technologies Co Ltd [HWT.UL] argued that she should be let out on bail while awaiting an extradition hearing due to severe hypertension and fears for her health while incarcerated in Canada, court documents released on Sunday showed.

HONG KONG (Reuters) - Hong Kong is on course to take the global IPO crown this year for the most money raised in stock market flotations, narrowly ahead of arch-rival New York, but its new listings have posted the worst performance among leading bourses, data show.

NEW YORK/SAN FRANCISCO, (Reuters) - Uber Technologies Inc has filed paperwork for an initial public offering, according to three people with knowledge of the matter, taking a step closer to a key milestone for one of the most closely watched and controversial companies in Silicon Valley.

FRANKFURT (Reuters) - Volkswagen has denied allegations that Chairman Hans Dieter Poetsch knew about the carmaker's emissions test cheating almost three months before U.S. authorities made it public in September 2015.

TOKYO (Reuters) - Nissan said it was seeking to block former chairman Carlos Ghosn's access to an apartment in Rio de Janeiro, citing a risk that the executive, arrested and removed from his role for financial misconduct, may remove or destroy evidence.

POCATELLO, Idaho (Reuters) - When Sean Luangrath joined Pocatello, Idaho-based Inergy Solar a few years ago, the plan was to move the portable solar battery maker to his home base of Salt Lake City so he could build it with easy access to Silicon Slopes' tech talent and venture capital.

(Reuters) - Brazilian builder Odebrecht’s Peruvian unit has signed a deal with Peruvian authorities to pay a multimillion dollar fine that will allow it to continue operating in the country in return for providing evidence about officials it bribed, three sources related to the matter told Reuters on Saturday.

NEW YORK (Reuters) - With bond and equity markets from the United States to emerging markets all on pace to lose money this year, investors have not seen this much red on their screens since 1972, the last time no asset class returned at least 5 percent.