The United States government has completed its audit of the Institute of Microelectronics (IME), employer of the 31-year-old American researcher found hanged in his Chinatown apartment in June last year. The US officials who came for the audit were satisfied with the outcome, the Ministry of Foreign Affairs (MFA) said on Monday.

Responding to media queries, an MFA spokesman said the voluntary audit of IME was an offer made by Minister for Foreign Affairs K. Shanmugam to US Secretary of State John Kerry in March this year. The offer was made "in the spirit of cooperation and openness to satisfy the US that allegations of illegal transfers of US technology from IME to the Chinese company Huawei were completely untrue and without basis," said the MFA spokesman.

In July this year, a coroner's inquiry into Mr Todd's death found that the researcher had killed himself by hanging, dismissing claims by his family that he had been murdered. The 31-year-old's parents had claimed that their son was killed, possibly over military-related research he had done at IME, which could have compromised US national security. This was rejected by the judge, who said a review of Dr Todd's work at IME did not turn up any such research.