PULP MILLS (JUDGMENT) 89 by the industrial plant to be established, particularly in a sector such as pulp manufacturing, which often involves the use or production of substances which have an impact on the environment. This is all the more important in view of the fact that Article 41 (a) provides that the regulatory framework to be adopted by the Parties has to be in keeping with the guidelines and recommendations of international technical bodies. 224. The Court notes that the Orion (Botnia) mill uses the bleached Kraft pulping process. According to the December 2001 Integrated Pollution Prevention and Control Reference Document on Best Available Techniques in the Pulp and Paper Industry of the European Commission (hereinafter “IPPC-BAT”), which the Parties referred to as the industry standard in this sector, the Kraft process already accounted at that time for about 80 per cent of the world’s pulp production and is therefore the most applied production method of chemical pulping processes. The plant employs an ECF-light (Elemental chlorine-free) bleaching process and a primary and secondary wastewater treatment involving activated sludge treatment. 225. The Court finds that, from the point of view of the technology employed, and based on the documents submitted to it by the Parties, particularly the IPPC-BAT, there is no evidence to support the claim of Argentina that the Orion (Botnia) mill is not BAT-compliant in terms of the discharges of effluent for each tonne of pulp produced. This finding is supported by the fact that, as shown below, no clear evidence has been presented by Argentina establishing that the Orion (Botnia) mill is not in compliance with the 1975 Statute, the CARU Digest and applicable regulations of the Parties in terms of the concentration of effluents per litre of wastewater discharged from the plant and the absolute amount of effluents that can be discharged in a day. 226. The Court recalls that Uruguay has submitted extensive data regarding the monitoring of effluent from the Orion (Botnia) mill, as contained in the various reports by EcoMetrix and DINAMA (EcoMetrix, Independent Performance Monitoring as required by the IFC Phase 2 : Six Month Environmental Performance Review (July 2008) ; EcoMetrix, Independent Performance Monitoring as required by the IFC, Phase 3 : Environmental Performance Review (2008 Monitoring Year) (hereinafter “EcoMetrix Third Monitoring Report”) ; DINAMA, Performance Report for the First Year of Operation of the Botnia Plant and the Environmental Quality of the Area of Influence, May 2009 ; DINAMA, Six Month Report on the Botnia Emission Control and Environmental Performance Plan), and that Argentina expressed the view, in this regard, that Uruguay had on this matter, much greater, if not exclusive, access to the factual evidence. However, the Court notes that Argentina has itself generated much factual information and that the materials which Uruguay produced have 79