Company: DLNG
Filing Date: 2025-04-10
Form Type: 20-F
Source: 0001104659-25-033744
Chunk: 203

Company: Dynagas LNG Partners LP
Filing Date: 2025-04-10
Form: 20-F
Item: Item 4
Chunk 203
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 and Asia. 
One important result of the geographical shifts in LNG production and consumption is that demand for shipping services (expressed in terms of ton miles) has grown at a much faster rate than the underlying increases in LNG trade. Ton miles are derived by multiplying the volume of cargo by the distance between the load and the discharge ports on each voyage. During 2014-2024, demand for LNG shipping services, expressed in terms of ton miles, has increased at a compound average growth rate (CAGR) of 7.3%, compared with a 5.4% increase in the volume of cargo carried.

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<{self.tag} alt="{self.alt}" src="{self.src}">LNG Seaborne Trade 2010-20241
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(1) Provisional estimate
Source: Drewry
LNG Trades Requiring Ice Class Tonnage
Ice Class Vessel Classifications
Ice class designations are assigned to ships that are strengthened to navigate in specific ice conditions. Ice class vessels are governed by different ice class rules and regulations depending on their respective area of operations.
Baltic Sea

●   Bay and Gulf of Bothnia, Gulf of Finland - Finnish-Swedish Ice Class Rules (FSICR)
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●   Gulf of Finland (Russian territorial waters) - Russian Maritime Register (RMR) Ice Class Rules
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Arctic Ocean

●   Barents, Kara, Laptev, East Siberian and Chukchi Seas - Russian Maritime Register (RMR) Ice Class Rules
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●   Beaufort Sea, Baffin Bay, etc. - Canadian Arctic Shipping Pollution Prevention Rules (CASPPR)
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●   RMR Ice Class Rules
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There are also ice class rules and regulations for commercial ship operations on inland lakes, mainly the Great Lakes/St. Lawrence Seaway.

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In the context of current commercial newbuilding orders, the FSICR have become the de facto standard for new tonnage. Four ice classes are defined in the FSICR. The FSICR fairway due ice classes along with the design notional level thicknesses, in order of strength from high to low, are:

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         Class   ​   Standard                                                                      
1A Super (1AS)   ​   Design notional level ice thickness of 1.0m. For extreme harsh ice conditions.
            1A   ​   Design notional level ice thickness of 0