Sea Freight: How It Works & Its Advantages for Business

Sea freight has become one of the main solutions in facing the rapidly growing global trade. This growth is driven by globalization, the expansion of emerging markets, and the growth of cross-border e-commerce.

Under these conditions, the use of sea transportation becomes increasingly important to maintain the efficiency of large-scale goods distribution.

For those who want to optimize their distribution strategy, understanding how the sea freight system works can be a key step toward improving distribution efficiency on a global scale.

This article will help you understand key aspects of sea freight so you can determine whether this method suits your business needs. Let's take a look at the full explanation below.

What Is Sea Freight?

Sea freight is a series of processes related to the management of goods shipment via sea routes, from planning and distribution to delivery to the recipient. This system includes various stages such as packaging, transportation, temporary storage, and final delivery.

In practice, maritime logistics plays an important role in connecting different countries around the world. This system allows manufacturers, distributors, and consumers to connect without geographical limits.

One of the main advantages of sea freight is its ability to transport large quantities of goods at a relatively lower cost compared to other modes of transportation, such as air. It is no wonder that sea-based trade has become the backbone of the global supply chain.

Why Is Sea Freight Important?

Sea freight plays a crucial role in supporting global economic activities. Here are the reasons:

1. Very Large Transport Capacity

Ships are capable of carrying large amounts of cargo at once. This is highly advantageous for businesses that require large-scale distribution, as it can reduce the cost per unit.

2. Backbone of International Trade

Most export and import activities are conducted via sea routes. With an extensive network of ports, sea transportation makes the distribution of goods between countries more practical.

3. High Cost Efficiency

Compared with air transportation, shipping by sea is much more affordable. This makes sea freight the main choice for transporting heavy and large-volume goods.

4. Supporting Global Connectivity

Sea freight connects various countries around the world through international trade routes. This opens up opportunities for economic cooperation and accelerates overall global growth.

5. Lower Carbon Footprint

Sea transportation is known to have lower carbon emissions, around 10–40 gCO₂/tkm, compared to other transportation modes, such as trucks, which emit about 50–60 gCO₂/tkm. This makes it a more environmentally friendly choice.

In the study titled "Technology Analysis on Environmentally Friendly Ships: Promoting Sustainable Sea Transportation" in the Journal of Fisheries and Marine Education (2025), it is mentioned that sea vessels have great potential as a low-emission logistics solution. This is supported by various technological innovations, such as:

Use of alternative fuels, such as LNG, hydrogen, and ammonia.
Hybrid propulsion and electrification systems that combine the use of conventional engines and electric power to improve energy efficiency and reduce emissions at ports.
Energy efficiency technologies, such as air lubrication.

The study results indicate that using LNG can reduce CO₂ emissions by up to 25%. However, it should be noted that emission reductions depend on the vessel type and its operations. This shows that sea freight is not only cost-efficient but also increasingly environmentally sustainable.

How Sea Freight Works

The process of shipping goods by sea involves several interconnected stages. Here is an overview of the flow:

Shipping Planning. The process begins by determining the type of service to use, such as Full Container Load (FCL) or Less than Container Load (LCL). Additionally, important documents such as invoices and packing lists must also be prepared.
Packing and Pickup. Goods are securely packed to withstand the conditions of sea travel. After that, the goods will be picked up to be sent to the port.
Loading Process onto the Ship. Upon arrival at the port, the goods will be inspected and placed into containers before being loaded onto the cargo ship.
Sea Voyage (Sailing). The ship then sails to the destination port. During the journey, the shipping status can usually be monitored periodically.
Unloading at the Destination Port. Upon arrival, the container will be unloaded and sorted by distribution destination.
Customs. Goods must go through Customs inspection. Documents will be verified, and taxes or import duties will be settled.
Delivery to the Final Location. Once cleared by Customs, the goods are delivered to the recipient's address using further transportation such as trucks.
Receipt and Inspection of Goods. The recipient will check the condition of the goods to ensure everything matches the order.

Types of Sea Freight

In practice, there are several types of sea freight services that can be tailored to needs, namely:

Less Container Load (LCL). Used when the volume of goods is insufficient to fill a container. The goods will be combined with other shipments in one container.
Full Container Load (FCL). One container is used by only one shipper. This method is faster and safer because it bypasses the consolidation process.
Bulk Shipping. Used to transport large quantities of goods without special packaging, such as coal, wheat, and oil.
Break Bulk Cargo. This method is used for goods that cannot be placed in containers, such as heavy equipment or construction materials.
Roll-on/Roll-off (RoRo). Used for vehicles such as cars, trucks, or heavy equipment that can be directly loaded onto the ship.
Tanker Shipping. Specifically for liquid shipments, such as oil, chemicals, and LNG, by tanker ship.
Refrigerated Shipping. Used for goods that require a certain temperature, such as fresh food and pharmaceutical products.

Sea Freight Solutions from Chandra Daya Investasi

As part of its infrastructure business development, PT Chandra Daya Investasi (CDI Group), through Chandra Shipping International (CSI), provides marine logistics solutions for your business distribution needs.

CSI, as a sea freight company, focuses on the shipping industry and currently manages more than 10 LPG and chemical transport vessels. This fleet continues to grow along with the increasing demand for energy and industrial material distribution.

Currently, there are more than 10 ships with capacities of up to 106,650 DWT, including two units that are still under construction. These ships not only serve internal needs but also external clients from various industrial sectors.

As a continuously growing infrastructure provider, CDI Group has become #YourGrowthPartner, demonstrating a commitment to delivering efficient and sustainable distribution solutions. For that reason, let's optimize your marine logistics with Chandra Daya Investasi.