I got this list so far. I can edit it when we find out more lounges....

HSBC Bahrain
Bahrain
Lebanon
Brazil
Malta
Dubai
Pakistan
Hong Kong
Qatar
Indonesia
Sri Lanka
Japan
Turkey
*The link to which lounges they inlude seem to be missing.

HSBC Egypt
Marhaba Lounge at Dubai International Airport *Till 30/06/2011 (Only applies to Premier credit card?)
Cedar Lounge (VIP lounge) at the Rafic Hariri International Airport - Beirut (Only applies to Premier credit card)
Dilmun Lounge at Bahrain International Airport
Oryx Lounge - Doha Airport (Only applies to Premier credit card)

HSBC India
*states you need to show Premier Mastercard credit card
International Airports
Mumbai Clipper lounge - Terminal 2B
Kolkata Clipper lounge
Chennai Clipper lounge
New Delhi Clipper lounge
Bangalore Executive business class lounge
Domestic Airports:
Mumbai - Clipper lounge at 1B (first floor)
Mumbai - Clipper Bar & Restaurant at 1A (Mezzanine floor)
Mumbai - Clipper Lounge Bar-Located inside the security hold area of Terminal 1B
Kolkata - Top desk restaurant and bar
Kolkata - Clipper Lounge-Located in the departure area of the Domestic terminal
Cochin - Clipper restaurant and bar

Dubai - Marhaba Lounge

HSBC Indonesia
Priority Pass free for cardholder + 1 guest

HSBC Japan
Domestic airports
Hokkaido New Chitose Airport “Super Lounge”
Hakodate Airport “Business Lounge”
Tohoku/ Hokuriku Aomori Airport “Airport Lounge”
Akita Airport “Royal Sky”
Sendai Airport “Business Lounge”
Niigata Airport “Airium Lounge”
Toyama Airport “Lounge Raicho”
Komatsu Airport “Member’s Lounge”
Kanto Narita International Airport
--Terminal 1 “IASS Executive Lounge 1”
--Terminal 2 “IASS Executive Lounge 2”
Haneda Airport
--Terminal 1 “Airport Lounge (Central)
--“Airport Lounge (North)
--“Airport Lounge (South)
--Terminal 2 “Airport Lounge (Check-in lobby)
--“Airport Lounge (North Pier)
Kansai/Chubu Kansai International Airport
--“Card Member’s Lounge” (Rokko, Kongo, Hiei)
--“Smoking Lounge”
Itami Airport “ Lounge Osaka”
Chubu International Airport “Premium Lounge Centrair”
Chugoku/Shikoku Okayama Airport “Lounge Muscat”
Yonago Airport “Yonago Airport Lounge”
Hiroshima Airport “Business Lounge”
Yamaguchi Ube Airport “Lounge Kirara”
Takamatsu Airport “Sanuki”
Tokushima Airport “Airport Lounge Vortis”
Matsuyama Airport “Business Lounge”
Kyusyu/Okinawa Kita-Kyusyu Airport “Lounge Himawari”
Fukuoka Airport “Kutsurogi No Lounge TIME”
Nagasaki Airport “Business Lounge Azarea”
Kumamoto Airport “Business Lounge”
Kagoshima Airport “Sky Lounge Nanohana”
Naha Airport “Lounge Hana”

Foreign airports
Hawaii Honolulu International Airport “IASS HAWAII Lounge”

HSBC Lebanon
states lounge access, but link broken

HSBC Mexico
In English
You get the World Elite Mastercard with a account in Mexico, so the Priority Pass is included. Reading the application, looks like you need some paperwork Sign credit application, Valid official identification (voter ID, passport, identity card number. Professional or primer, if a foreigner FM2 and passport)., Proof of address (phone bill with no older than two months)., Proof of income (last 2 check stubs, make a credit card or statement)., Minimum period in the use of 1 year.

HSBC Qatar
Hong Kong - HSBC Premier dedicated lounge. Hong Kong International Airport HSBC Premier Center (HPC) Arrival Hall of Terminal 1.
Jakarta, Indonesia - HSBC Premier dedicated airport lounge. International terminal 2E, Soekarno Hatta Airport.
Bali, Thailand - Domestic Departure Terminal Gate 17 & 18, Ngurah Rai International Airport.
Sau Paulo, Brazil - Congonhas International Airport. Located in Sao Paulo downtown.
Rio de Janeiro, Brazil - Santos Dumont Local Airport. Located in Rio de Janeiro.
Istanbul, Turkey - Istanbul Atatürk Airport International Terminal.
Beirut, Lebanon - Cedar Lounge, Rafic Hariri International Airport - Beirut, Lebanon.
Dubai, UAE - Dubai International Airport. Marhaba Lounge Terminal 1,2 and 3.
Manama, Bahrain - Bahrain International Airport , Dilmun Lounge.
Doha, Qatar - Doha International Airport, Oryx Lounge.
Karachi, Pakistan - CIP International Lounge, Quaid-e-Azam Airport
Lahore, Pakistan - CIP International Lounge, Allama Iqbal Airport
Islamabad, Pakistan - CIP International Lounge, Islamabad Airport
Malta - La Valette Lounge, Malta Airport

HSBC Turkey
Priority Pass, but it looks as a $30 fee per person per use.

HSBC United Arab Emirates
looks like access same as HSBC Bahrain shows

HSBC USA
AA five star service with AA lounge use (must be booked prior to travel and on AA)


HSBC Premier countries that do not have airport lounge options (from what I could find out)
Argentina
Australia
Bermuda
Brazil
Brunei
Canada
Cayman Islands
China
Colombia
France
Greece
Poland
United Kingdom