ESCO Group (English Wikipedia)

Siemers, Erik (May 2, 2011). "ESCO Corp. files for $175M IPO". Portland Business Journal. Retrieved 18 August 2012.
Goldfield, Robert (May 21, 2013). "ESCO scraps its IPO plans". Portland Business Journal. Retrieved 21 May 2013.
Siemers, Erik (August 14, 2012). "Esco to acquire Ulterra Drilling for $325M". Portland Business Journal. Retrieved 18 August 2012.
Giegerich, Andy. "Esco adds to oil/gas portfolio with Stabiltec purchase". Portland Business Journal. Retrieved January 3, 2014.

edmontonjournal.com (Global: 4,555^th place; English: 2,614^th place)

"110 union workers to lose jobs as Esco Corp. closes Nisku foundry, blaming mining slowdown". Edmonton Journal. 11 February 2015. Retrieved 2016-03-17.

equipmentjournal.com (Global: low place; English: low place)

"ESCO Corporation acquired by Weir Group - Equipment Journal". Equipment Journal. 2018-08-07. Retrieved 2018-08-08.

globenewswire.com (Global: 2,614^th place; English: 1,549^th place)

"ESCO Corporation to Join Leading Global Engineering Company, Weir" (Press release). 19 April 2018.

northumberlandtoday.com (Global: low place; English: low place)

nurun.com. "ESCO lays off 33 employees in Port Hope". Northumberland Today. Retrieved 2016-03-17.
nurun.com. "Layoffs at Esco's Port Hope facility". Northumberland Today. Retrieved 2016-03-17.

nwexaminer.com (Global: low place; English: low place)

Allan Classen (April 2009). "Neighborhood schools under cloud of industrial air pollution" (PDF). The NW Examiner. pp. 1, 8, 13. Archived from the original (PDF) on 2011-07-14. Retrieved 2010-10-17.
Paul Koberstein (March 2010). "DEQ admits downplaying ESCO threat: Nearby residents may get 95 percent of air toxics from foundry" (PDF). The NW Examiner. pp. 1, 21. Archived from the original (PDF) on 2011-07-14. Retrieved 2010-10-17.

oregonlive.com (Global: 886^th place; English: 517^th place)

"Esco Corp. to close NW Portland factory, lay off 247 workers". OregonLive.com. 18 November 2015. Retrieved 2016-03-17.
"Feds investigate Portland's Esco Corp. for violating U.S. embargo against Cuba". OregonLive.com. 17 March 2012. Retrieved 2016-03-17.
Scott Learn (December 10, 2009). "Oregon to review health benchmarks for mercury, manganese". The Oregonian. Retrieved 2010-10-17.

portlandmercury.com (Global: 9,854^th place; English: 6,537^th place)

Sarah Mirk (August 13, 2009). "Breathing Wheezy: Green Portland's Dirty Secret: Its Air". Portland Mercury. Retrieved 2010-10-17.

portlandtribune.com (Global: 8,169^th place; English: 4,502^nd place)

Gallivan, Joseph (2015-11-19). "ESCO to close its main plant facility in Portland". Portland Tribune. Archived from the original on March 23, 2016. Retrieved 2016-03-16.

state.or.us (Global: 7,635^th place; English: 4,307^th place)

deq.state.or.us

"Good Neighbor Agreement" (PDF). Oregon DEQ. Archived from the original (PDF) on 2014-05-08. Retrieved 2014-05-07.

thejournal.co.uk (Global: low place; English: 7,568^th place)

Ford, Coreena. "Job losses at ESCO Corporation in Guisborough". journallive. Retrieved 2016-03-17.

treasury.gov (Global: 1,996^th place; English: 1,728^th place)

"ESCO Corporation Settles Potential Civil Liability for Apparent Violations of the Cuban Assets Control Regulation" (PDF). www.treasury.gov. U.S. Treasury Department. November 13, 2014. Retrieved 2016-03-16.

web.archive.org (Global: 1^st place; English: 1^st place)

Gallivan, Joseph (2015-11-19). "ESCO to close its main plant facility in Portland". Portland Tribune. Archived from the original on March 23, 2016. Retrieved 2016-03-16.
"Good Neighbor Agreement" (PDF). Oregon DEQ. Archived from the original (PDF) on 2014-05-08. Retrieved 2014-05-07.
Allan Classen (April 2009). "Neighborhood schools under cloud of industrial air pollution" (PDF). The NW Examiner. pp. 1, 8, 13. Archived from the original (PDF) on 2011-07-14. Retrieved 2010-10-17.
Paul Koberstein (March 2010). "DEQ admits downplaying ESCO threat: Nearby residents may get 95 percent of air toxics from foundry" (PDF). The NW Examiner. pp. 1, 21. Archived from the original (PDF) on 2011-07-14. Retrieved 2010-10-17.

wsj.com (Global: 79^th place; English: 65^th place)

blogs.wsj.com

"Esco Corp. Pays $2.1 Million to Settle Sanctions Violations". Wall Street Journal. 2014-11-13. Retrieved 2016-03-17.

ESCO Group (English Wikipedia)

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edmontonjournal.com (Global: 4,555^th place; English: 2,614^th place)

globenewswire.com (Global: 2,614^th place; English: 1,549^th place)

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thejournal.co.uk (Global: low place; English: 7,568^th place)

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web.archive.org (Global: 1^st place; English: 1^st place)

wsj.com (Global: 79^th place; English: 65^th place)