SEOUL (Reuters) - Samsung Electronics Co Ltd said on Friday it will participate in a rights issue by Samsung Heavy Industries Co Ltd, buying 204 billion won (137.2 million pounds) of shares.

Samsung Electronics owned a 16.9 percent stake in Samsung Heavy as of end-2017 and its stake will remain roughly the same, a Samsung Heavy spokesman said.

Samsung Heavy, which has forecast a fourth straight year of operating losses, is planning a new share issuance of about 1.4 trillion won.

(Reporting by Joyce Lee; Editing by Edwina Gibbs)