- Bid Bulletin No. 10 – Bid No. 22-003-06 CHARLIE – Expansion of Passenger Terminal Building at Davao International Airport
- Bid Bulletin No. 9 – Bid No. 22-003-06 CHARLIE – Expansion of Passenger Terminal Building at Davao International Airport
- Bid Bulletin No. 8 – Bid No. 22-003-06 CHARLIE – Expansion of Passenger Terminal Building at Davao International Airport
- Bid Bulletin No. 7 – Bid No. 22-003-06 CHARLIE – Expansion of Passenger Terminal Building at Davao International Airport
- Bid Bulletin No. 6 – Bid No. 22-003-06 CHARLIE – Expansion of Passenger Terminal Building at Davao International Airport
- Bid Bulletin No. 5 – Bid No. 22-003-06 CHARLIE – Expansion of Passenger Terminal Building at Davao International Airport
- Bid Bulletin No. 4 – Bid No. 22-003-06 CHARLIE – Expansion of Passenger Terminal Building at Davao International Airport
- Bid Bulletin No. 3 – Bid No. 22-003-06 CHARLIE – Expansion of Passenger Terminal Building at Davao International Airport
- Bid Bulletin No. 2 – Bid No. 22-003-06 CHARLIE – Expansion of Passenger Terminal Building at Davao International Airport
- Bid Bulletin No. 1 – Bid No. 22-003-06 CHARLIE – Expansion of Passenger Terminal Building at Davao International Airport