July 13 (Reuters) - The following are the top stories in the Wall Street Journal. Reuters has not verified these stories and does not vouch for their accuracy.

- Regis Resources RRL.AX said it won’t match a rival US$3.9 billion bid for Vault Minerals made by Genesis Minerals GMD.AX, as a planned merger of the gold-mining companies would then no longer meet its thresholds for value and returns.

- Fast-fashion retailer Shein has cleared a key hurdle for its long-awaited Hong Kong initial public offering, winning China’s nod for a listing that people familiar with the matter said could see it valued at more than $40 billion.

- The U.S. Justice Department is investigating allegations that Shawn Fain, president of the United Auto Workers union, abused his position by attempting to secure a financial benefit for his fiancée, according to people familiar with the matter.

- U.S. Senator Mitch McConnell said that his lengthy Senate absence has been because of his recovery from a fall and a subsequent bout of pneumonia, breaking a weeks-long silence about his hospitalization that had spurred speculation about his condition.