C. Short Identification of the Case -- C.1 The Claimant summarizes its claims and the relief sought as follows: -- C.1.1 Jurisdiction -- C.1.2 Application for Interim Order -- C.1.3 Merits -- C.2 The respondents summarize their response and relief sought as follows: -- C.2.1 Jurisdiction -- C.2.2 Application for Interim Order -- C.2.3 Merits -- D. Relief Presently Sought by the Parties on the Merits -- D.I Relief Presently Sought by the Claimant on the Merits -- D.II Relief Presently Sought by the Respondents on the Merits -- E. Procedural History -- F. Relief Sought by the Parties regarding Jurisdiction -- F.I Relief Sought by Respondents regarding jurisdiction -- F.II Relief Sought by Claimant regarding Jurisdiction -- G. Short Summary of Contentions regarding Jurisdiction -- G.I Short Summary of Contentions by Respondents -- G.II Short Summary of Contentions by Claimant -- H. Considerations and Conclusions of the Tribunal regarding Jurisdiction -- H.I Preliminary Considerations -- H.II International Character of the Contractual Relationship and of this Arbitration -- 1. Arguments by Respondents -- 2. Arguments by Claimant -- 3. The Tribunal -- H.III The Law Applicable regarding Jurisdiction -- 1. Arguments by Respondents -- 2. Arguments by Claimant -- 3. The Tribunal -- H.IV Competence of this Tribunal to Decide on its Jurisdiction -- 1. Arguments by Respondents -- 2. Arguments by Claimant -- 3. The Tribunal -- H.V The Relevance of the Decisions of the Brazilian Courts -- 1. Arguments by the Respondents -- 2. Arguments by the Claimant -- 3. The Tribunal -- H.VI Subjective Arbitrability -- 1. Arguments by Respondents -- 2. Arguments by Claimant -- 3. The Tribunal -- H.VII Objective Arbitrability -- 1. Arguments by Respondents -- 2. Arguments by Claimant -- 3. The Tribunal -- 2. Arguments by Claimant -- 3. The Tribunal -- H.IX Estoppel and Venire Contra Factum Proprium -- 1. Arguments by Respondents -- 2. Arguments by Claimant -- 3. The Tribunal -- H.X Is respondent Nº 2 (COPEL GENCO) Bound to Arbitration? -- 1. Arguments by Respondents -- 2. Arguments by Claimant -- 3. The Tribunal -- H.XI Considerations regarding Costs at this stage -- 1. Relief Sought by Respondents -- 2. Relief Sought by Claimant -- 3. The Tribunal -- I. Decisions -- DISSENTING OPINION of Prof. Jorge Fontoura Nogueira