Nucor is offering $39.69 (Canadian $46.25) for each Harris Steel share, a 6% premium over Harris' closing price of $37.32 (Canadian $43.49) Friday on the Toronto Stock Exchange.
The offer values Harris's stock at $1.07 billion (Canadian $1.25 billion), according to Nucor. Harris also had $105.5 million (Canadian $123 million) in debt at the end of September.
The tender offer will be open for at least 35 days and has the support of the boards of both companies, the news release said.
In addition, the companies said John Harris, chairman and chief executive of Harris Steel, and other members of the Harris family and Paul Kelly, Harris Steel's president and chief operating officer, have agreed to tender their shares to Nucor, giving Nucor more than 50% of Harris Steel shares.
The deal also requires regulatory approval in the United States and Canada. Nucor plans to allow Harris Steel to operate as a separate, wholly owned subsidiary once the deal is completed.
The companies have been partners for the past three years. "Harris provides Nucor with immediate and broad geographical reach and with considerable scale and growth opportunities," Nucor said in a news release.
Nucor expects the acquisition to immediately bolster earnings.
In October, Charlotte-based Nucor announced plans to expand operations in Memphis, Tenn., by adding a $230 million, 850,000-ton annual capacity mill there that will employ more than 200 people.
Nucor, the nation's largest recycler, has operations in 17 states and also announced last year a new $27 million Utah facility and an expansion of operations in Decatur, Ala.
Nucor shares closed Friday at $54.66 on the New York Stock Exchange. The NYSE is closed Tuesday for the funeral of former President Gerald R. Ford.