thumb|right|230px|St Marys Paper
St. Marys Paper Ltd. was a manufacturer of pulp and paper, with its mill located in Sault Ste. Marie, Ontario, Canada. The mill was situated on the St. Marys River waterfront, just east of Algoma Steel.
History
Formation
The pulp mill was originally established as the "Sault Ste. Marie Pulp and Paper Company" in 1895 by Francis Clergue. It was located on the site of a Northwest Company trading post that was established in 1874.
Following the collapse of the Clergue industrial empire in 1903, it closed for several months before being operated in receivership until 1905. which arranged for the transfer of the assets of the Sault Ste. Marie Pulp and Paper Company to the Lake Superior Paper Company Ltd. in 1911.
The mill was acquired by St Marys Paper Inc. from Abitibi in 1984, St Marys Paper was controlled by a private investor, Dan Alexander, who arranged to invest heavily in a fifth paper machine. This resulted in three successive restructurings between 1993 and 2012:
:* The company declared bankruptcy in April 1993 and was operated for several years by Ernst & Young. Belgravia Investments purchased the mill in 1994 and made the facility viable with the assistance of the employees, the Ontario government and the Toronto-Dominion Bank.
:* In October 2006, it filed for bankruptcy protection under the Companies' Creditors Arrangement Act in Toronto. In June 2007, the mill was reopened under new ownership and began making paper again for its customers in the United States. However, pensioners saw their benefits reduced by 20%. In order to assure operations, St. Mary's entered into financing, supply and exclusive distribution agreements with International Forest Products.
:* Despite these efforts, which also included $25 million in startup funding from IFP and the Government of Ontario, the mill was unable to resume significant activity, and went idle once more in 2011. Dubbed Mill Square, current plans for the site include the new home of the Algoma Conservatory of Music, a performance and arts venue, and Destination North, a cultural and tourism "hub" project that will incorporate interactive museum exhibits, a farmer's market and a new terminus for the Agawa Canyon Railway tour. The main building now houses a restaurant (The Mill Steak House), 2 pubs (The Boiler Room and The Steamfitter's Lounge), and a gelato/coffee shop (The Gelato Mill), along with the performance venue and conservatory. The facility is branded as The Machine Shop.
In 2015, parts of the area were purchased by The Tech including The Yard (outdoor music venue) and The Yard Locker.
Image gallery
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File:North West Company Lock 12.JPG|Abitibi-Price head office
Image:St_marys_tracks_view.jpg|Back of mill, as seen from tracks
Image:St_marys_atco_trailer.jpg|ATCO construction trailer on mill grounds in 1996
Image:St_marys_dirty_vessel.jpg|Vessel inside mill
Image:Paper_storage_st_marys.jpg|Paper storage
Image:St_marys_kfg_ext_installation.jpg|Outlying service building
Image:St_marys_mach_shop_5pm.jpg|Machine Shop near #5PM
Image:St Marys Paper Sault Ste Marie ON National Map.jpg|Overhead view from an American satellite
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