The Mitsubishi Estate Company (MEC) are a Japanese investor who became established in the UK in 1986 and are known for engaging in the leasing and development of real estate, dealing mainly with office buildings in the City and West End in central London. The MEC held a public consultation earlier this week over the plans for its new development, a £900 million skyscraper built in place of 6-8 Bishopsgate EC2 and 150 Leadenhall Street EC3.