National Business

Shopify Inc. has come out on top of a battle with the Canada Revenue Agency.

CALGARY — Some oilsands producers are removing workers and shutting production from their sites as wildfires rage in northeastern Alberta. Cenovus Energy Inc.

SASKATOON — Alberta and Saskatchewan signed agreements with Ontario on Sunday to remove trade barriers ahead of a meeting with Prime Minister Mark Carney to hash out a plan they hope will supercharge the economy.

VANCOUVER — Teck Resources Ltd. says a mechanical issue has forced it to shut down the SAG mill at its Carmen de Andacollo operations in Chile for maintenance. The company estimates production will be interrupted for about one month for repairs.

WASHINGTON (AP) — A split Supreme Court declined on Monday to hear a challenge to a state ban on assault weapons, semiautomatic rifles that are popular among gun owners and that have also been used in multiple mass shootings.

MONTREAL — Flight simulator company CAE Inc. has named Matthew Bromberg as its new president and chief executive. Bromberg, who will join the company on June 16 and take over the top job on Aug. 13, has headed global operations for U.S.

OTTAWA — Few would confuse Hollywood action star Tom Cruise with Bank of Canada governor Tiff Macklem.

CALGARY — Prime Minister Mark Carney sat down with oil and gas executives in Calgary Sunday to discuss partnerships and to get their input for his plans to make Canada an energy superpower.

Canada Post has rejected a request from the union representing about 55,000 of its workers to send their ongoing labour dispute to binding arbitration.

CALGARY — The RCMP says air restrictions will be in place in two main areas during the upcoming G7 Leaders' Summit in Alberta this June and officials will make sure that no unwanted drones or aircraft enter airspace. Sgt.