Company: DLNG
Filing Date: 2025-04-10
Form Type: 20-F
Source: 0001104659-25-033744
Chunk: 94

Company: Dynagas LNG Partners LP
Filing Date: 2025-04-10
Form: 20-F
Item: Item 3
Chunk 94
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 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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LNG Seaborne Trade 2010-20241

(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)  

  Gulf of Finland (Russian territorial waters) - Russian Maritime Register (RMR) Ice Class Rules  

Arctic Ocean

  Barents, Kara, Laptev, East Siberian and Chukchi Seas - Russian Maritime Register (RMR) Ice Class Rules  

  Beaufort Sea, Baffin Bay, etc. - Canadian Arctic Shipping Pollution Prevention Rules (CASPPR)  

  RMR Ice Class Rules  

There are also ice class rules and regulations for commercial ship operations on inland lakes, mainly the Great Lakes/St. Lawrence Seaway.

Table of Contents

In the context of current commercial newbuilding orders, the FSICR have become the de factostandard 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:

  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 0.8m. For harsh ice conditions.          
  1B                  Design notional level ice thickness of 0.6m. For medium ice conditions.         
  1C                  Design not