Some abuse of foreigners working temporarily in Alberta is unavoidable because of conditions in their home countries, Alberta's minister of Employment and Immigration [Hector Goudreau] suggested Wednesday…120 Chinese workers were paid a fraction of what they were owed for work building tanks at a northern Alberta oilsands site…The concerns became public only after two…workers were killed on the job... "It appears that SSEC [Sinopec Shanghai Engineering Co. Canada] (the Canadian arm of the Chinese employer) at some point failed to live up to obligations to its workers," Goudreau said... A Calgary-based SSEC spokeswoman refused to comment Wednesday.