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Upstage Signs MOU to Acquire Daum Operator AXZ in Share Swap With Kakao

The stake exchange positions Upstage to use de-identified Daum content to train its Korean language model.

Overview

  • Both companies’ boards approved a nonbinding memorandum of understanding on Jan. 29 for a stock-for-stock transaction.
  • The proposed structure would give Upstage full ownership of AXZ while Kakao would receive a minority stake in Upstage.
  • Financial terms were not disclosed, though investment banking sources reported an approximate valuation of 200 billion won.
  • Upstage plans to convert decades of Daum user content, including Tistory blogs and Daum Cafe posts, into training data for its Solar LLM under a national foundation model effort.
  • Kakao continues to streamline legacy operations after formally separating Daum into AXZ on Dec. 1, 2025, while Upstage is preparing for a potential IPO as early as the second half of 2026 following a prior 740 billion won private valuation.