Commercial real estate service company Avison Young says that Mark Rose has been named to the new position of CEO. He was most recently CEO of Grubb & Ellis Co. Rose is a certified public accountant and will also be CFO at Avison Young. He will work from Toronto. Avison Young is a partner-owned company formed in 1996 that has 11 offices across Canada.

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Chartwell Seniors Housing REIT (TSX:CSH.UN) of Mississauga says Richard Noonan has been appointed as chief operating officer. Noonan previously worked for the company's Canadian retirement communities division in the same role. He replaces Cam Crawford who is leaving the company to pursue other interests. Crawford was placed in the COO position in January 2007 as part of an executive shakeup intended to make the trust profitable again. But the company has continued to slosh around in red ink. Also moving into a new role is Donna Marasco as senior VP of operations, boosting her position from solely handling operations in Western Canada.

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Toronto-based Centerra Gold Inc. (TSX:CG) has named Stephen Lang as president and CEO, succeeding the retiring Leonard Homeniuk. Jeffrey Parr, VP of finance, has been named CFO, Centerra said in a release. He replaces David Petroff, who has resigned to pursue other interests. Centerra is focused on acquiring and developing gold properties primarily in Central Asia, the former Soviet Union and other emerging markets. Its head office is in Toronto.

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Intrepid Mines Ltd. (TSX:IAU) says it has reached agreement with Laurence Curtis for him to step down as president as part of succession planning following the merger with Emperor Mines Ltd. He remains a director. Intrepid is an international gold and silver production company with head office in Toronto.

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Sierra Minerals Inc. (TSX:SIM) has named Michael Farrant as president and CEO. He replaces Martin Walter, who has resigned. A CA by training, Farrant most recently served as CFO of a number of junior mining companies. Sierra's head office is in Toronto.

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Nuinsco Resources Ltd. (TSX:NWI) has appointed Alison Sutcliffe as VP of finance and CFO. Sutcliffe is a chartered accountant who was previously controller of resources at Dundee Corp. In addition to her position with Nuinsco, Sutcliffe also becomes controller of Victory Nickel Inc. (TSX:NI). Victory Nickel is a pure-play nickel company in which Nuinsco owns a 22-per-cent equity interest. Sean Stokes has been promoted to Nuinsco's VP of corporate affairs and corporate secretary. He will hold the same position at Victory Nickel. Nuinsco is focused on identifying mineral investment opportunities worldwide. Its head office is in Toronto.

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Aeroquest International Ltd. (TSXV:AQL) has appointed Robert Motz as its new CFO. Motz is a CA who has worked with international and Canadian corporations. Wilfred Edge has resigned his position as CFO of Aeroquest International and taken the role of CFO of Aeroquest's subsidiary companies Aeroquest Ltd. and Geophex Ltd. Aeroquest provides airborne geophysical technologies and services. Its head office is in Mississauga.

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AirIQ Inc. (TSX:IQ) has appointed Donald Gibbs to the position of interim CFO. Gibbs is a CMA and has held CEO and CFO positions in high-tech companies. Michael Robb, previously the acting VP of finance and administration, will continue to provide related support on a contract basis. AirIQ specializes in telematics and security. Its head office is in Pickering.

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Agnico-Eagle Mines Ltd. (TSX, NYSE:AEM) says Daniel Racine has been promoted to senior VP of operations, Jean Robitaille to senior VP of technical services and Paul Henri Girard to VP for Canada. All have been with the company for more than 20 years. Agnico-Eagle is a gold producer with operations in Quebec, and exploration and development activities elsewhere in Canada, Finland, Mexico and the United States. Its head office is in Toronto.

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SunOpta Inc. (TSX:SOY) says that CEO Steve Bromley and CFO John Dietrich "will be transitioning from their current positions by no later than the end of the year" on recommendations from an audit committee. Reporting of financial results for the full year of 2007 and the first quarter of 2008 are expected by July 31, a deadline set for the delisting of the company's stock from the Nasdaq after it missed earlier filing deadlines. SunOpta produces and distributes natural and organic food products. Its head office is in Brampton.

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MedX Health Corp. (TSXV:MDX) has promoted Steven Guillen to president and CEO. He was named president in April, replacing company founder Phil Passy, who died earlier in the year. MedX develops and manufactures medical phototherapy devices. Its head office is in Mississauga.

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Neotel (TSXV:NIT) has named John Whincup as president and CEO, replacing Mark Edwards, who has resigned as a director and officer. Neotel provides bio-identity technology, workflow and resource management platforms and secure information transfer technology. Its head office is in Markham.

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EMS Satcom, a division of EMS Technologies Inc. (Nasdaq:ELMG) of Atlanta, says that Forrest Colliver has joined the company as VP of business development. He was most recently director of business development for commercial aircraft solutions at Thales Aerospace. EMS Satcom specializes in satellite-based terminals and antennas for the aeronautical, ground-mobile, maritime and emergency management markets. Its headquarters are in Ottawa.

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Archangel Diamond Corp. (TSXV:AAD) has appointed Tom Beardmore-Gray as president and CFO, replacing Jonathan Dickman, who remains a director. Beardmore-Gray is a chartered accountant who has been a director of Archangel since 2005 and with the De Beers Group since1994. Archangel is a junior Canadian mining company based in Toronto that is focused on a diamond project in northwest Russia.

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Takara Resources Inc. (TSXV:TKK) says that Annie Karahissarian has resigned as CFO to focus better on other mandates. Wesleigh Harkness has been appointed as interim CFO. She has spent the last year working as a finance consultant for Takara. Toronto-based Takara is a junior mining exploration company.

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Biosign Technologies Inc. (CNQ:BIOS) has named Radu Leca as CEO. Chairman and chief executive Richard Potts had resigned for undisclosed reasons. Biosign's head office is in Toronto.

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Natural Convergence Inc., a supplier of hosted VoIP software, has named Patrick Smith as chairman and CEO, and Bill Crank as president and executive VP of sales, marketing and business development. Smith has been the chairman of Natural Convergence for four years. Crank was most recently VP of sales at Ubiquity.

Natural Convergence has its head office in Ottawa.

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Varicent Software says Rick Vaughan has joined as VP of global services. Vaughan worked for 10 years with PeopleSoft/Oracle, most recently as group VP of Oracle Consulting. Varicent provides sales performance management solutions. Its head office is in Toronto.

- with files from The Canadian Press (E-mail notices and photos at least two weeks before publication date to murdoch@businessedge.ca)