Relationship dossier
Brunei
Japan
Relationship assessment
A sustained partnership built on LNG trade, an economic partnership agreement, and energy cooperation.
Brunei toward Japan
+40Brunei has supplied liquefied natural gas to Japan over many decades, making energy security a central element of Brunei's bilateral engagement with Japan. The two countries also established an economic partnership framework.
Japan toward Brunei
+40Japan has developed a long-standing energy relationship with Brunei and participates in cooperation under the 2007 Economic Partnership Agreement, including energy and technical fields.
Overall relationship
+40The relationship has a durable economic foundation in Brunei's LNG supply to Japan, reinforced by a bilateral economic partnership agreement and cooperation in energy and technical fields. These established arrangements support a substantially cooperative relationship.
How to read these scores
Scores are rough judgments, not objective measurements or current verification. Directional scores describe government policy and conduct, not public opinion. The overall score is an independent estimate, never an average.
- −100
- Extreme sustained hostility
- −50
- Substantially adversarial
- 0
- Mixed or neutral, supported by knowledge
- +50
- Substantially cooperative
- +100
- Exceptionally close sustained partnership
“Not assessed” means there is no recorded score. Pair existence makes no claim about diplomatic recognition or established relations.
Relationship context
Overview
Brunei and Japan maintain a sustained partnership centered on energy, especially Brunei's long-standing supply of liquefied natural gas to Japan. Their 2007 Economic Partnership Agreement and cooperation in energy and technical fields broaden the relationship beyond trade. No major bilateral disputes are prominent in the relationship.
Key developments
Brunei and Japan signed an Economic Partnership Agreement, creating a framework for bilateral economic cooperation.
The Brunei-Japan Economic Partnership Agreement entered into force.
Major uncertainties
- The current scope and implementation of energy cooperation are unclear.
- The scale of ongoing Japanese technical cooperation in Brunei is unclear.