Kymenlaakson Jäte Oy appears in JobCrawls’ Finnish labour-market dataset based on job listings we aggregate for Finland — this does not imply where the company is headquartered. Industry: Treatment and disposal of non-hazardous waste. Location: KELTAKANGAS. Estimated headcount range: 53–53 employees. JobCrawls Employer Score: 11/100. Hiring volume has been relatively stable in recent months.