An economic initiative called BIG-B (Bay of Bengal Industrial Growth Belt) involving Bangladesh and Japan is gaining attention for its potential impact on trade from the Bay of Bengal to South and Southeast Asia. Recently, Japan has expressed interest in including India in this major regional development plan.
Japan’s BIG-B Plan Explained
The BIG-B initiative aims to transform Bangladesh into a significant industrial and commercial hub, with a focus on the coastal areas around Chattogram and Cox’s Bazar. Central to this plan is the deep-sea port under development in Matarbari, designed to enhance maritime trade capabilities in the region. Japan’s goal is to develop infrastructure encompassing power, energy, industry, and transport to strengthen connections between South Asia and Southeast Asia.
First proposed in May 2014 by former Japanese Prime Minister Shinzo Abe, the project gained renewed attention during former Prime Minister Fumio Kishida’s visit to India in 2023. The focus is to foster industrial growth and improve logistics networks around the Bay of Bengal, reinforcing regional trade routes.
Strategic Importance of Matarbari Port
Matarbari port is viewed as the cornerstone of the BIG-B plan. Its development aims to make maritime trade smoother and increase the volume of goods movement. Japan is assisting by upgrading existing national highways and infrastructure to integrate the port with regional transport networks. The port is also planned to evolve into a center for power, energy, and industry, presenting opportunities for investment and employment in Bangladesh.
A stronger transportation link with neighboring countries may position the area as a key regional trade hub, highlighting its broader economic significance for South and Southeast Asia.
Following a meeting between Bangladesh’s Prime Minister Tarik Rahman and Japan’s Prime Minister Sanae Takaichi, a joint statement emphasized advancing this initiative by connecting sectors like electricity, ports, industry, and ICT.
India’s Potential Role and Regional Impact
Japan is considering India’s inclusion in BIG-B, attracted by its large market and the strategic position of India’s northeastern states. Enhanced connectivity among India, Bangladesh, Nepal, Bhutan, and Myanmar could open new trade and logistics routes, benefiting regional commerce. For Bangladesh, India’s involvement could mean greater access to a vast market, while Indian businesses might find fresh avenues for regional trade and maritime connectivity.
Despite this budding interest, India’s participation remains a developing prospect and has not yet been finalized.
This economic plan also carries geopolitical implications. The Bay of Bengal is a vital corridor in the Indian Ocean’s trade routes. Japan aims to protect its investments and commercial interests in the area, partly as a counterbalance to China’s regional influence.
The BIG-B initiative symbolizes a broader vision of economic integration and regional cooperation across South and Southeast Asia, potentially reshaping trade dynamics in this crucial zone.


