Sulfur Cap Uncertain Options! Disruptions Expected


  • Disruptions expected in coal import and export markets
  • Increased voyage rates in the entire supply chain
  • Columbia to Asia and South Africa to Asia routes will face more impact
  • Bunker fuel cost expected to rise before 2020
  • Estimated scrubber penetration at will be at less than 1% in 2020
  • Compliant fuel type will cause 20%-40% jump, on a US$/mt basis, on coal route voyage rates
  • Limited but growing LNG ship penetration

While analysts expect disruptions in the coal export and import markets, solutions to the International Maritime Organization’s 2020 sulfur cap (the current 3.5% sulfur cap will fall to 0.5%) remains unclear, a Wood Mackenzie analyst said in a report Thursday.

Analysts views on Increased rates and IMO 2020 cap

“Coal companies relying on ocean transport should brace for increased voyage rates,” Anthony Knutson, Principal Analyst at WoodMac, said in the report.

“There will be high costs across the entire supply chain,” a Platts Analytics analyst concurred in an interview with S&P Global Thursday.

The price of diesel will go up, leading to higher cost for domestic coal freight and to overall higher costs in coal production, from mining equipment, to trucks as the global supply curve shifts to the right.

Added to it, export and domestic margins would tighten, and US demand would be at risk most, the Platts analyst said.

Particularly, the long-haul supply routes such as Columbia to Asia and South Africa to Asia will be impacted more, the analyst added.

Additionally, the 2020 cap may lead to increased competition in the power sector.

“The idea is if HSFO needs to be gotten rid of, it might be burned in certain power markets,” the Platts analyst said, adding there are limited locations, including the Middle East, ASEAN, and Mexico, which can use high sulfur fuel oil (HSFO) for power generation.


In addition to competition between refining and marine investments, the uncertainty surrounding compliance, have prompted a “wait and watch” approach from both the sectors, the WoodMac report said.

“Refineries are slow and possibly reluctant to make major investments for the swing,” Knutson said. “Refineries have shown reluctance to invest the hundreds of millions to billions of dollars to increase production of low sulfur marine fuels.”

Bunker fuel costs are expected to rise even before 2020 and continue rising afterward until a balance is found between shipping company demand and refinery marine bunker fuel output.

The Wood Mackenzie analyst examined three options for lowering sulfur emissions, including emissions scrubbers systems, switch to low-sulfur fuels, and switch to alternative fuels.


WoodMac predicted emissions scrubbers systems to be a “medium term solution,” although cost effectiveness would come into play in addition to the reduced cargo capacity, considering the added weight.

The shipping industry is still recovering from the economic downturn of 2016, and has limited credit to pay for fleet-wide projects, especially when scrubbers would likely become superfluous in long term due to increased production of lower-sulfur fuels.

However, WoodMac “asserts the installation of commercial scrubbers has the advantage of being less expensive and faster to put in place than a major refining upgrade, which is highly capital intensive and can take many years to implement.”

WoodMac estimated scrubber penetration at less than 1% in 2020, in addition to future ship builds being “constructed ‘scrubber ready’.”

By 2025, WoodMac expects “one in five 2013-2018 vintage bulkers will have a scrubber.”


WoodMac said the switch from high-sulfur to low-sulfur fuel as a “short-to medium-term solution.”

Bulk carrier ships currently burn residual-based high sulfur fuel oils (HFSO) which have a sulfur content cap of 3.5% under regulations from the IMO.

Alternate fuel options include distillate fuels marine gasoil (MGO), which has a sulfur content of 0.1%, and an emerging fuel specification with a 0.5% sulfur content known as very low sulfur fuel oil (VLSFO).

Depending on the compliant fuel type, WoodMac estimates a 20%-40% jump, on a US$/mt basis, on coal route voyage rates for coal shippers.


The last option, switching to alternative fuels such as liquefied natural gas, is seen as a “long-term solution” by WoodMac.

Although LNG is low-sulfur with clean burning properties, WoodMac listed underdeveloped global infrastructure, slow global investment, and inefficient fuel transfer technology as problematic.

WoodMac sees “limited but growing LNG ship penetration” from 2020 to 2025.

IMO originally released the coming sulfur cap October 27, 2016, and the organization came to the definitive January 1, 2020, start date this year.

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Source: Platts


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