The Knowledge Marine green tug contract gives the company a ₹279.33 crore, 15-year charter from Mumbai Port Authority for one new battery-operated harbour tug. The award covers more than construction: Knowledge Marine must also man, operate, maintain and technically manage the vessel through the charter term.
| Contract value | ₹279.33 crore, including taxes |
|---|---|
| Customer | Mumbai Port Authority |
| Asset | New battery-operated electric green tug |
| Pull rating | 60 tonnes bollard pull |
| Charter term | 15 years |
What the Knowledge Marine green tug contract includes
The filing describes a complete service package: vessel construction, chartering, manning, operation, maintenance and technical management. That structure matters because a long-duration charter combines an upfront shipbuilding task with recurring operating obligations. It is not equivalent to booking ₹279.33 crore as immediate revenue.
Whalesbook and ScanX independently reported the award and its main terms after the exchange disclosure. Both identify Mumbai Port Authority as the customer and describe the tug as a new 60-tonne bollard-pull battery-operated vessel. The filing does not publish a delivery date, payment schedule or annual revenue split.
Why a 15-year charter changes the risk
A tug helps larger ships berth, unberth and manoeuvre in confined port waters. Over 15 years, availability can depend on battery performance, charging arrangements, crew training, spare parts and scheduled maintenance. Those operating variables make the contract more durable than a one-time equipment sale, but they also keep execution risk with the service provider.
The order is Knowledge Marine’s third green-tug contract, according to its press release. That may create repeatable operating experience, yet readers should not assume identical economics across ports or vessels. The useful next disclosures are construction progress, commissioning, utilisation, downtime and the accounting pattern used for charter income.
A comparable distinction appears in Mazagon Dock’s proposed Andhra shipyard, where a planned asset still has to become operating capacity. It also applies to BEML’s high-speed rail order, where the headline value must be translated into milestones and deliveries.
The Knowledge Marine green tug award is best understood as a 15-year performance contract: the vessel opens the revenue stream, while reliable port service determines whether the full economic value is realised.
The official BSE announcement record identifies this as a Regulation 30 order disclosure by Knowledge Marine and reproduces the core terms: one 60-tonne battery-operated tug, the Mumbai Port Authority customer, the 15-year service period and the ₹279.33 crore value including taxes. This first-party exchange record anchors the event; the independent reports are used to corroborate and explain it.
The company also frames the vessel as part of a common shipbuilding platform for its green-tug programme. That could support repeatable construction and maintenance processes, but it is a stated operating intention rather than evidence of achieved cost savings. Future commissioning and availability data will show whether the platform produces those efficiencies.
What to watch next
Investors and port users should look for a construction timetable, battery and charging specifications, the planned service-entry date and measurable availability targets. The filing confirms the award and scope, but it does not disclose margins, financing requirements or how much of the contract value belongs to construction versus operations.
Frequently asked questions
Who awarded the green-tug contract?
Mumbai Port Authority awarded the contract to Knowledge Marine & Engineering Works.
What will Knowledge Marine provide?
It will build a new battery-operated tug and then man, operate, maintain and technically manage it under the charter.
Is ₹279.33 crore immediate revenue?
No. The figure is the stated contract value including taxes across a 15-year service arrangement, not a single-period revenue number.
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