What to know
- Lithium is a rare resource that does not commonly appear near the starting Lifepod.
- The Great Jaw is the earliest reliable Lithium location in the game.
- Later-game volcanic and Zezuran Desert zones contain larger Lithium deposits.
- You need Lithium for Plasteel Ingots, High-Capacity Air Tanks, and Portable Oxygen Generators.
Finding Lithium in Subnautica 2 can feel difficult when you first begin exploring deeper biomes. Unlike Titanium or Copper, Lithium is intentionally placed in dangerous regions to gate progression into stronger equipment and oxygen upgrades. Once you know the correct locations and preparation steps, however, farming Lithium becomes much easier.
Quick overview of Lithium in Subnautica 2
| Feature | Details |
|---|---|
| Resource Type | Rare crafting mineral |
| Main Early Location | The Great Jaw |
| Late-Game Farming Area | Zezuran Desert volcanic caves |
| Required Tool | Sonic Resonator |
| Main Uses | Plasteel Ingots, Tank upgrades |
| Danger Level | Medium to High |
| Best Vehicle | Tadpole |
| Important Upgrade | Heat Tolerance Adaptation |
Where to find Lithium in Subnautica 2
The first major Lithium location in Subnautica 2 is a dangerous biome called The Great Jaw. This giant clam-like organism contains several Lithium deposits inside its core.
Most players discover this area roughly 280 to 350 meters south or south-southwest from the Lifepod.
1- The Great Jaws (the Clam near Lifepod)
Inside the clam are glowing tendon-like strands. Touching them causes the entire structure to close shut. When this happens, the area fills with damaging acid and can quickly kill you or destroy your vehicle.
The biggest challenge is mining Lithium quickly before the trap activates.
Preparation before entering The Great Jaw
Before attempting the run, you should ideally have:
| Recommended Gear | Why It Helps |
|---|---|
| Sonic Resonator | Required to break Lithium nodes |
| Basic Fins | Faster movement |
| Wakemaker | Improves swim speed |
| Air Bladders | Emergency oxygen |
| Repair Tool | Vehicle repairs |
| High Capacity Tank | Extra oxygen time |
The Sonic Resonator is especially important because Lithium deposits cannot be gathered efficiently without it.
How to safely collect Lithium from The Great Jaw
Step 1
Travel south-southwest from the Lifepod until you notice a massive clam structure partially open in the water.
Step 2
Look around the outer edges for Oxygen plants and refill before entering.
Step 3
Carefully swim inside without touching the glowing tendon strands. Position your back against a wall before using the Sonic Resonator. This prevents the recoil from pushing you into the trap tendons.
Step 4
Mine the Lithium deposits quickly and leave immediately. If possible, place a tiny nearby base with a Biobed so failed attempts are less punishing.
2 – Lithium farming in the Zezuran Desert
Once you unlock the Heat Tolerance Adaptation, Lithium farming becomes far easier.
The Zezuran Desert volcanic cave system contains multiple large Lithium deposits near thermal vents and underground tunnels.
This area is considered the best long-term Lithium farming location because the deposits respawn consistently and are much more plentiful than The Great Jaw.
| Requirement | Purpose |
|---|---|
| Heat Tolerance Adaptation | Prevents heat damage |
| Tadpole Vehicle | Faster travel and protection |
| Sonic Resonator | Mining large deposits |
| Repair Tool | Emergency vehicle repair |
Without Heat Tolerance, the volcanic biome can continuously damage your health.
All confirmed Lithium locations in Subnautica 2
| Location | Stage of Game | Danger Level | Notes |
|---|---|---|---|
| The Great Jaw | Early Game | High | First accessible Lithium |
| Zezuran Desert | Mid/Late Game | Medium | Best farming zone |
| Tadpole Pens caves | Mid Game | Medium | Near volcanic tunnels |
| Hot Cave Basecamp area | Mid Game | Medium | Story progression route |
Subnautica 2 Lithium uses explained
Lithium becomes extremely valuable because many advanced upgrades require it.
How to craft Plasteel Ingots using Lithium
The most important use for Lithium is creating Plasteel Ingots.
You craft them at the Processor by combining:
| Recipe | Materials |
|---|---|
| Plasteel Ingot | 2 Lithium + 1 Titanium Ingot |
Plasteel is required for stronger survival equipment and later vehicle upgrades.
Oxygen and survival upgrades requiring Lithium
Lithium is also used in several major progression items.
| Item | Purpose |
|---|---|
| High Capacity Air Tank | Increased oxygen capacity |
| Portable Oxygen Generator | Portable oxygen source |
| Advanced vehicle upgrades | Mid-game progression |
| Structural crafting components | Base expansion |
Lithium acts as a progression bottleneck in Subnautica 2. The game intentionally limits access early on because many advanced systems depend on Plasteel and upgraded survival equipment.
Once you unlock consistent Lithium farming, exploration becomes significantly easier since you can stay underwater longer and build stronger equipment.
Best strategy for farming Lithium efficiently
The most efficient route is usually:
- Gather a few early Lithium pieces from The Great Jaw.
- Craft your first Plasteel-related upgrades.
- Unlock Heat Tolerance Adaptation.
- Build the Tadpole vehicle.
- Farm large quantities in the Zezuran Desert volcanic caves.
This progression avoids repeated dangerous runs into The Great Jaw.
Lithium is one of the most important progression resources in Subnautica 2, especially once you start building advanced oxygen equipment and Plasteel upgrades. The Great Jaw offers your first reliable source early on, while the Zezuran Desert becomes the best long-term farming zone later in the game. With the right preparation and upgrades, you can eventually gather large amounts safely and keep progressing into deeper biomes.
