如何Renew
https://www.gov.uk/overseas-passports/y/hong-kong/renewing_new/adult

Renew指引
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/254490/OS_OL_Guidance_10.13.pdf

必須文件列表：
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/266171/OS_Guidance_Gp2_11.13.PDF

邊個可以做副署人：
https://www.gov.uk/countersigning-passport-applications

最後
APPLICATION o既website
https://passportapplication.service.gov.uk/ips-olc/[/size=6]



呢個係上網搵到一個比較update O既information
http://themilksnet.blogspot.hk/2012/12/bno.html