Industrials

PolyMet offers $544M in financial assurances for mine costs

PolyMet Mining Corp. is offering the state a $544 million package of financial assurances to serve as an insurance policy to protect taxpayers from potentially having to cover the costs of closing and cleaning up a controversial copper-nickel mine it wants to build in northeastern Minnesota.

Finisar and Caterpillar jump while Diebold and Lumentum fall

Stocks that moved substantially or traded heavily on Wednesday: Finisar Corp., up $4.41 to $23.71 Apple is making a $390 million investment in the company so it can make more lasers used in facial recognition technology.

NTSB El Faro probe highlights maritime safety issues

The National Transportation Safety Board announced that it was a confluence of factors that contributed to the sinking of the El Faro in the fury of Hurricane Joaquin on Oct. 1, 2015, which killed all 33 people on board.

The Latest: Walker signs bill lifting mining moratorium

The Latest on a Republican bill that would lift Wisconsin's moratorium on gold and silver mining (all times local): 1:25 p.m. Gov. Scott Walker has signed a bill lifting Wisconsin's moratorium on gold and silver mining.

Swedish think tank: South Korea's arms sales record high

A Swedish think tank says South Korea's arms sales hit record levels last year, pushed by the continuous military threat from North Korea, complicated relations with China and a government decision to increase domestic arms production.