Jesusito D. Legaspi v. Republic of the Philippines

Summary

This case involves a construction contractor's attempt to seek price adjustment due to the 1997 Asian Financial Crisis peso devaluation, despite a 'no escalation' contract clause. The primary legal issue was whether the exclusive venue provision in the construction agreement applied to the contractor's Civil Code-based claim. The Supreme Court ruled that venue provisions are binding when accompanied by express waiver language, and that claims for contract modification necessarily arise from the underlying agreement regardless of the legal theory invoked. The Court distinguished between the legal basis for a claim (Article 1267 Civil Code) and the factual substance of the dispute (construction contract performance), holding that venue is determined by the latter. The decision clarifies that contractual venue restrictions apply to all disputes arising from or relating to the agreement, even when framed under general legal principles.