Sustainability in shipping is often framed around the big numbers - fleet emissions, alternative fuels, scrubber adoption. The smaller numbers - those tied to the daily operations of ship chandling - get less attention, and yet they add up. Across a typical year, a single large chandler moves thousands of tonnes of materials, runs dozens of delivery vehicles, and handles tens of thousands of packaging units. Each of those is a lever.
What follows is not a manifesto. It is a practical read on where sustainability in marine supply is a real change in practice versus where it is still largely marketing.
Packaging reduction, done properly
A provisions delivery to a single vessel often generates 40-60 kg of packaging - cardboard, plastic wrap, polystyrene cold-packs. Some of this is structural and genuinely necessary; some is just vendor habit. The easiest win is switching bulk dry-goods from individual cartons to returnable plastic crates that cycle between the warehouse and the vessel. For vessels on regular rotation, this can reduce packaging by 30-40% within a few voyages.
The trickier win is refusing over-packaged products at the sourcing level. Some wholesale suppliers default to double-wrapped pallets; a consistent policy of asking for single-wrap saves roll quantities of stretch film.
Cleaning chemicals: the easier half of the story
Biodegradable deck cleaners, galley degreasers, and hold-washing chemicals are now widely available and, for most applications, comparable in performance to traditional products. We increasingly supply these as the default unless the vessel specifically requires a traditional formulation for a particular task.
The harder category is tank-cleaning chemicals for specialist cargoes - some residues still require the stronger traditional solvents and there is no one-size replacement. Here, the sustainability story is not "switch to green" but "use the right amount and dispose responsibly."
Vehicle fleet emissions
Our delivery fleet is still diesel. The honest assessment is that battery-electric reefer vehicles are not yet a practical option for the payload sizes and runtime requirements of marine delivery - the range is too short and the recharge cadence disrupts dispatch scheduling. We have trialled biodiesel blends on a few routes with acceptable results; the long-term plan is a mixed-fuel fleet as vehicle-side technology matures. No point pretending this is already solved when it is not.
Sourcing locally where it makes sense
Fresh produce sourced within a 100 km radius of Chennai carries a much lower logistical carbon footprint than the same item sourced from the other side of India. For most vegetables, fruit, dairy, and fish, local sourcing is viable and often higher quality. For speciality items - certain grades of meat, specific ethnic provisions for international crews - the local option does not always exist, and insisting on local sourcing there would be counter-productive.
The sensible policy is local where practical, long-distance where necessary, with clear reasoning for each choice. That is more useful to a shipping line auditing its supply chain than a blanket claim of "locally sourced."
The larger shift: waste reception
Chennai Port and Kamarajar have tightened their waste reception facility protocols significantly in the last three years. For chandlers who also handle vessel waste offloading - garbage, sludge, slops - this means licensed handlers, documented receipts, and disposal at approved reception facilities. MARPOL Annex V compliance is a chandler-side responsibility as well as a vessel-side one. A chandler without proper waste-handling paperwork is quietly a sustainability liability.
Where honest scepticism still belongs
Not every sustainability claim in marine supply is meaningful. Carbon-neutral delivery routes usually rely on offset accounting that would not survive scrutiny. Ocean-plastic packaging is sometimes just regular recycled plastic with a better story. The right response is to ask for the specific evidence rather than accepting the claim - and for chandlers to provide that evidence when it is real and to skip the claim when it is not.
For operationally credible sustainability practices across Chennai Port, Ennore, and Kattupalli, see our ship chandler at Chennai Port full service.