The new Executive Order makes official the Philippine names of 131 features in the West Philippine Sea — but would this have an effect on maritime tensions?The new Executive Order makes official the Philippine names of 131 features in the West Philippine Sea — but would this have an effect on maritime tensions?

It’s ‘official’: Marcos mandates use of PH names for West Philippine Sea features

2026/04/01 08:05
8 min read
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One day after announcing a “reset” of ties with China despite maritime tensions that don’t show signs of abating in the South China Sea, President Ferdinand Marcos Jr. mandated national government agencies to use Philippine names in referring to some 131 features of the Kalayaan Island Group in the West Philippine Sea. 

Executive Order No. 111, signed on March 26 but made public only on March 31, makes official the Philippine names of the features, including those not controlled by the Philippines.

They are: 

International Name Philippine Name
1 Northeast Cay Parola Island
2 Southwest Cay Pugad Island
3 Trident Shoal Tatlong-tulis Shoal
4 Lys Shoal Bisugo Shoal
5 West York Island Likas Island
6 Irving Reef Balagtas Reef
7 Thitu Island Pag-asa Island
8 Subi Reef Zamora Reef
9 Discovery Great Reef Paredes Reef
10 Western Reef Gomez Reef
11 Loaita Bank Kota Bank
12 Menzies Reef Lakandula Reef
13 Loaita Cay Panata Island
14 Loaita Island Kota Island
15 Gaven Reefs North Burgos Reef North
16 Gaven Reefs South Burgos Reef South
17 Namyit Island Binago Island
18 Eldad Reef Malvar Reef
19 Petley Reef Juan Luna Reef
20 Sand Cay Bailan Cay
21 Itu Aba Island Ligaw Island
22 Whitsun Reef Julian Felipe Reef
23 McKennan Reef Chigua Reef
24 Sin Cowe Island Rurok Island
25 Johnson Reef Mabini Reef
26 Fiery Cross Reef Kagitingan Reef
27 Seahorse Shoal Baybayin Dagat Shoal
28 Templer Bank Dalag Bank
29 Brown Bank Kayumanggi Bank
30 Wood Bank Kahoy Bank
31 Reed Bank Recto Bank
32 Pennsylvania North Reef Del Pilar Reef
33 Southern Banks Katimugan Banks
34 Foulerton Reef Magat Salamat Reef
35 Hardy Reef Hubo Reef
36 Flat Island Patag Island
37 Nanshan Island Lawak Island
38 Jackson Atoll Quirino Atoll
39 Southampton Reefs Bonifacio Reefs
40 Hopps Reef Diego Silang Reef
41 Livock Reef Jacinto Reef
42 Bombay Shoal Abad Santos Shoal
43 Boxall Reef Rajah Soliman Reef
44 Second Thomas Shoal Ayungin Shoal
45 Mischief Reef Panganiban Reef
46 Investigator NE Shoal Dalagang Bukid Shoal
47 Royal Captain Shoal Kanduli Shoal
48 Half Moon Shoal Hasa-hasa Shoal
49 First Thomas Shoal Bulig Shoal
50 Alicia Annie Reef Arellano Reef
51 Commodore Reef Rizal Reef
52 Mariano Cay
53 Cornwallis South Reef Osmeña Reef
54 Alison Reef De Jesus Reef
55 Pearson Reef Hizon Reef
56 Maralie Reef Dagohoy Reef
57 Cuarteron Reef Calderon Reef
58 East Reef Silangan Reef
59 Central Reef Gitna Reef
60 West Reef Kanluran Reef
61 Investigator Shoal Pawikan Shoal
62 Erica Reef Gabriela Silang Reef
63 Mariveles Reef Mariveles Reef
64 Ardasier Bank Antonio Luna Bank
65 Barque-Canada Reef Mascardo Reef
66 Lizzie Weber Reef Magsaysay Reef
67 Amboyna Cay Kalantiaw Cay
68 Ardasier Reef Antonio Luna Reef
69 Dallas Reef Rajah Matanda Reef
70 North Danger Reef Peligro Reef
71 North Reef Hilagang Peligro Reef
72 South Reef Timog Peligro Reef
73 Day Shoal Silangang Peligro Shoal
74 Iroquois Ridge Hari Ridge
75 Jenkin Patches Purongitan Patches
76 Sabina Patches Pasinggatan Patches
77 Pag-asa Cay 1
78 Sandy Cay Pag-asa Cay 2
79 Pag-asa Cay 3
80 Pag-asa Cay 4
81 Pag-asa Cay 5
82 Pag-asa Reef 1
83 Pag-asa Reef 2
84 Lankiam Cay Kota Cay
85 Loaita Southwest Reef Kota Magbanua Reef
86 Kugui Reefs Kota Reef 1
87 Kota Reef 2
88 Tizard Bank Bayani Bank
89 Silangang Ligaw Reef
90 Discovery Small Reef Silangang Paredes Reef
91 Empire Reef Burunyugan Reef 1
92 Holiday Reef Burunyugan Reef 2
93 Hallet Reef Burunyugan Reef 3
94 Hughes Reef Burunyugan Reef 4
95 Edmund Reef Burunyugan Reef 5
96 Gent Reef Burunyugan Reef 6
97 Loveless Reef Burunyugan Reef 7
98 Collins Reef Roxas Reef
99 Lansdowne Reef Burunyugan Reef 8
100 Higgens Reef Burunyugan Reef 9
101 Jones Reef Burunyugan Reef 10
102 Burunyugan Reef 11
103 Tetley Reef Burunyugan Reef 12
104 Bamford Reef Burunyugan Reef 13
105 Sin Cowe East Reef Burunyugan Reef 14
106 Ross Reef Burunyugan Reef 15
107 Fiery Cross Reef Center Kagitingan Gitna Reef
108 Fiery Cross Reef North Kagitingan Dulo Reef
109 Leslie Bank Ploning Bank
110 Makisig Reef
111 Marilag Reef
112 Marie Louise Bank Marcos Sr. Bank
113 North Reef Socrates Reef
114 Amy Douglas Bank Del Rio Bank
115 Hirane Shoal Dela Torre Shoal
116 Iroquois Reef Rozul Reef
117 Baker Reef Montes Reef
118 Pennsylvania South Reef Anota Reef
119 Little Patches Toting Patches
120 Sao Bank Kiming Bank
121 Nares Bank Baragatan Bank
122 Third Thomas Shoal Payao Shoal
123 Hopkins Reef Dumara Reef
124 Dickinson Reef Aguinaldo Reef
125 Hoare Reef Laurel Reef
126 Deane Reef Macapagal Reef
127 Hampson Reef Garcia Reef
128 Petch Reef Aquino Reef
129 Sabina Shoal Escoda Shoal
130 Pigeon Reef Lopez Jaena Reef
131 Ardasier Breakers Antonio Luna Breakers

All features are under the municipality of Kalayaan in Palawan province.

Does this matter?

Yes and no. The EO’s scope is limited, after all, since it only covers the executive branch.

Through EO 111, Marcos officially instructed the National Mapping and Resource Information Authority (NAMRIA) to produce and publish updated charts and maps using the Philippine names of the features, which should also show the Philippine maritime zones as indicated in the Philippine Maritime Zones Act.

Since only the executive branch is covered by order, Marcos can only direct “all national government agencies instrumentalities, including government-owned or -controlled corporations and government financial institutions” to use the Philippine names of these features. The legislative and judiciary, of course, can choose to follow the designated Philippine names as they wish.

The EO also orders government agencies related to education — Department of Education, Commission on Higher Education, Technical Education and Skills Development Authority, as well as state universities and colleges — to make sure updated maps and charts from NAMRIA are used in lessons across the country.

Beyond that, the international names of these features are likely to still prevail in usage. After all, the late Benigno Aquino III’s Administrative Order No. 29, which named maritime areas west of the Philippines the West Philippine Sea, didn’t result in other countries calling that part of the South China Sea by that name.

Even the Philippines’ closest partners, including treaty-ally the United States, typically use the term South China Sea when referring to areas that are within the Philippines’ exclusive economic zone.

But it could serve a different purpose internally.

“According to [National Maritime Council], it is imperative to adopt a standard set of Philippine names for the maritime features in the KIG for the efficient administration and governance of the area, and the exercise of the country’s sovereignty in the WPS,” reads the EO.

Calling these features by their Philippine names, derived from either Filipino terms or after personalities in Philippine history, could be useful in strengthening an internal narrative as the country tries to assert both its sovereign rights and sovereignty claims in those waters and features.

After all, it’s difficult to claim and fight for something that isn’t named.

Of the 131, the Philippines occupies only nine features — Parola Island, Likas Island, Pag-asa Island, Panata Island, Kota Island, Patag Island, Lawak Island, Rizal Reef, and Ayungin Shoal.

China, which claims most of the South China Sea, occupies 8 of the 131 – most notably Panganiban (Mischief) Reef, which it first claimed in 1995 was supposed to be only a shelter for fisherfolk. Today, Mischief Reef is a military base located very close to the Philippine mainland. Beijing occupies another feature in the South China Sea close to the Philippines — Scarborough Shoal or Bajo de Masinloc, a feature that’s not part of the Kalayaan Island Group.

It’s Vietnam that occupies the most features in the South China Sea, although maritime tensions between Hanoi and Manila over claims and entitlements are practically non-existent. Malaysia occupies three of the 131 features listed under the new EO, while Taiwan occupies Itu Aba.

In the West Philippine Sea, the Philippines has both sovereign rights and claims to sovereignty.

Its sovereign rights in its exclusive economic zone — or the exclusive right to explore, exploit, and protect maritime resources — were affirmed in the 2016 Arbitral Award, although Beijing refuses to recognize it. Sovereign rights does not mean that the waters are the Philippines’, but it should mean that it has the exclusive right to exploit, for instance, both food and energy resources in that area.

Sovereignty is another issue altogether, and one that could not be decided on by the Arbitral Tribunal, since UNCLOS does not deal with territorial disputes. High-tide elevations — which include Pag-asa Island, a feature beyond the Philippines’ EEZ — touch on sovereignty, as these features generate their own 12-nautical-mile territorial sea.

But back to the official and mandated Philippine names — will this mean an easier life for Filipinos, whether uniformed or fisherfolk, out at sea? Not really.

Exerting entitlements and claims aren’t just enforced by formalizing names or even winning awards. This is when law enforcement, diplomacy, deterrence, and, if need be, a show of force, come in. – Rappler.com

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