[6] Khan has led Summit in building partnerships with multinationals such as GE, IFC and Wärtsilä[7] while securing billions of dollars in financing for infrastructure projects within Bangladesh.

[17] In 2011, Khan led Summit Group in establishing a joint venture with GE to build plants generating 327 megawatts of electricity for Bangladesh.

[23] The National Board of Revenue (NBR) has started an investigation into the money laundering and tax evasion histories of 25 Bangladeshi politicians and businessmen, including Khan; and the Anti Corruption Commission Bangladesh (ACC) has created a three-member committee to investigate.

[5] In September 2016, Khan announced that Summit Group has established a Singaporean company that it will publicly list in Singapore and help raise $2.5 billion to invest in Bangladesh projects such as a liquified natural gas terminal and additional power capacity.

[30][31] In January 2017, Summit Group announced that it would build a $500 million LNG terminal in Moheshkhali, Bangladesh.

[35][36] Summit's Founder Chairman Muhammed Aziz Khan expressed his satisfaction with the investment stating, "Much needed technology and capital for Bangladesh's fast growing power and energy market will be available from JERA with their vast knowledge and balance sheet.

[11] In 2021, Khan shares his plans with Bloomberg about Summit, JERA and Mitsubishi Corporation to jointly bid for an estimated US$2.3 billion in FSRU projects in Payra (Bangladesh), Kerawalapitiya (Sri Lanka) and Pakistan as he sees demand for storage increasing as governments face volatility in natural gas prices.

[11] His second daughter Dr Adeeba Aziz Khan[65] is a fellow at Wolfson College, Cambridge University.

[citation needed] His eldest brother Lt Col (Rtd) Faruk Khan is a Member of Parliament (MP) and a former minister.

[citation needed] In 2022, Anjuman and Aziz Charitable Trust (AACT) of Bangladesh joined UNICEF's international council to help address the learning crisis caused by the COVID-19 pandemic, enabling 3,000 vulnerable children to re-enter education and catch up on lost learning many of whom were forced to drop out of school during the pandemic.

The AACT has pledged to continue supporting UNICEF Bangladesh in enabling the education of some of the most disadvantaged out-of-school children in the country, many of whom were forced to drop out of school during the COVID-19 pandemic.

[69] AACT's support will enable UNICEF's specialised learning programme to be offered to 3,000 children living in Dhaka South City Corporation Zones 3, 4, and 5 who have dropped out of school.

It found that six offshore companies, most of which were located in the British Virgin Islands, were being operated using Singaporean addresses in their names.

[70] The National Board of Revenue (NBR) has launched an investigation into 25 Bangladeshi politicians and businessmen, including Muhammad Aziz Khan, for money laundering and tax evasion.

[76] On 7 October 2024, Bangladesh Financial Intelligence Unit (BFIU) directed all the banks and financial institutions in Bangladesh to freeze the accounts of Summit Group chairman Muhammed Aziz Khan and 11 members of his family, including his brothers.