Most actively traded companies on the TSX, TSX Venture Exchange

TORONTO - Some of the most active companies traded Monday on the Toronto Stock Exchange and the TSX Venture Exchange:

Toronto Stock Exchange (14,680.76, up 76.60 points):

Eastern Platinum Ltd. (TSX:ELR). Miner. Up one cent, or 11.76 per cent, to 9.5 cents on 16.2 million shares.

Bombardier Inc. (TSX:BBD.B). Transportation. Down five cents, or 1.36 per cent, to $3.64 on 13.9 million shares. Bombardier's shares are expected to remain under pressure while the airplane manufacturer determines the cause of a CSeries engine problem late last week that has grounded its fleet of four test aircraft.

Fortis Inc. (TSX:FTS.IR). Utilities. Down 26 cents, or 0.68 per cent, to $38.15 on 5.4 million shares.

Talisman Energy Inc. (TSX:TLM). Oil and gas. Down six cents, or 0.54 per cent, to $11.14 on 4.3 million shares.

B2Gold Corp. (TSX:BTO). Miner. Down one cent, or 0.38 per cent, to $2.62 on 3.6 million shares.

Timmins Gold Corp. (TSX:TMM). Miner. Up 11 cents, or 7.97 per cent, to $1.49 on 3.1 million shares.

Toronto Venture Exchange (978.47, down 5.52 points):

Xmet Inc. (TSXV:XME). Miner. Up one cent, or 33.33 per cent, to four cents on 4.9 million shares.

Theralase Technologies Inc. (TSXV:TLT). Medical devices. Down one cent, or 2.94 per cent, to 33 cents on 4.7 million shares.

Companies reporting major news:

Centerra Gold Inc. (TSX:CG). Miner. Down 91 cents, or 19.74 per cent, to $3.70 on 5.8 million shares. The company threatened Monday to shut down its Kumtor project if it doesn't receive approval from Kyrgyz Republic authorities for mine plan and related permits by June 13.

TransForce Inc. (TSX:TFI). Transportation. Down 36 cents, or 1.52 per cent, to $23.34 on 1 million shares. The trucking and delivery company says it has a US$310-million deal to buy Minnesota-based Transport America, Inc., which offers transportation services across the United States. TransForce says the acquisition is expected to generate annual revenues of about US$350 million for the Quebec company.

Valeant Pharmaceuticals International Inc. (TSX:VRX). Drug manufacturer. Up $3.83, or 2.69 per cent, to $146.17 on 633,343 shares. Pershing Square Capital Management LP is seeking to replace a majority of directors at Allergan Inc. at a special meeting of shareholders as part of a plan to back a proposed takeover of the company by Valeant. The investment firm headed by Bill Ackman is the largest shareholder at Allergan with a 9.7 per cent stake in the company and has agreed to accept less for its shares than other shareholders in an effort to see the Valeant deal done.