Judgment of the General Court (Second Chamber) of 9 April 2019.#Qualcomm, Inc. and Qualcomm Europe, Inc. v European Commission.#Competition — Market for baseband chipsets used in consumer electronic devices — Administrative procedure — Article 18(3) and Article 24(1)(d) of Regulation (EC) No 1/2003 — Decision requesting information — Obligation to state reasons — Necessity of the information requested — Proportionality — Burden of proof — Privilege against self-incrimination — Principle of good administration.#Case T-371/17.