Write up covering all requirements with recent references.
Company chosen is M1 mobile and it must be written in Singapore context.
Share some link may be useful to the writer.
https://www.imda.gov.sg/regulations-licensing-and-consultations/frameworks-and-policies/competition-management/full-competition-in-singapores-telecommunication-sector
The writer may consider to use the annual report of 2 other competitor to do comparison and advise.
https://info.singtel.com/annualreport/2015/assets/files/Financials/122_Financial_Position.pdf
https://ir.starhub.com/FormBuilder/_Resource/_module/gZSLLgdlcU638zpQWaYGmQ/file/SHL_AR2015_Financial_Statements.pdf
https://www.ey.com/gl/en/services/transactions/cash-on-the-line--telecom-operators-and-working-capital-management-2010
https://www.ey.com/Publication/vwLUAssets/EY-cash-on-the-line-2014/$FILE/EY-cash-on-the-line-2014.pdf
https://www.ey.com/gl/en/industries/telecommunications/cash-on-the-line---europe-performance-remains-unchanged
https://www.inventoryops.com/articles/vendor_managed_inventory.htm
And please try to address to the requirement, analyse and discuss whether the company should use conservative or aggressive to working capital management.