Key legal question
Whether the alleged underpriced sale and hidden profit distribution were sufficiently established for direct federal tax purposes.
Extracted holding
The factual basis was insufficient; the case had to be sent back for further fact-finding, including valuation evidence and clarification of the parties' shareholding relations.
Extracted reasoning
An underprice below construction cost does not by itself prove market-value undervaluation. The authorities had not proven the decisive discrepancy or the prerequisites for applying the triangle theory, and the factual record was incomplete.