Lithium in Subnautica 2 is first found near The Great Jaw southwest of the Lifepod, with one early piece sitting on a table near colony wreckage and more lithium inside the Great Jaw itself. The Great Jaw lithium requires the Sonic Resonator, quick movement, and enough oxygen support because the mouth closes after the purple strands are triggered.

For more Subnautica 2 material routes, crafting help, and survival progression, use the complete Subnautica 2 guide hub.

Where To Find Lithium In Subnautica 2

The first reliable lithium location in Subnautica 2 is The Great Jaw, southwest of the Lifepod near a ruined colony building.

I noticed Lithium is much harder to find than early materials like Titanium, Silver, Lead, or Gold because it is not spread across the starter area. Early on, the game mainly points players toward The Great Jaw, a giant mouth shaped landmark that can be used to gather lithium before deeper heat zone routes open later.

Lithium Source	Location	Requirement	Best Use
Table pickup	Near colony wreckage southwest of the Lifepod	Reach the ruined building near The Great Jaw	First safer lithium piece
Great Jaw lithium blocks	Inside The Great Jaw	Sonic Resonator and fast escape	Early lithium farming
Hot caves below Tadpole Pens	Volcanic vent zone	Heat Tolerance Adaptation	Later lithium farming

The Great Jaw is the key early answer. Later, once Heat Tolerance is unlocked, lithium becomes easier to farm in the hot caves below the Tadpole Pens. Until then, The Great Jaw is the main route when a recipe starts asking for lithium.

Subnautica 2 Lithium Location Video

The video below shows the lithium location route visually, which helps because The Great Jaw area is easy to miss when only following direction and landmark clues.

Watch the full location video here: Subnautica 2 lithium location guide.

How To Reach The Great Jaw Lithium Location

To reach The Great Jaw, head southwest from the Lifepod, cross the ocean floor drop off, and follow the crater wall with the wall on the right side.

This route leads past colony wreckage and toward a ruined colony building. That ruined building matters because there is a safer early lithium pickup nearby before the actual Great Jaw risk begins.

Route Step	What To Do
Start at the Lifepod	Use the Lifepod as the main route anchor.
Head southwest	Move toward the drop off in the ocean floor.
Follow the crater wall	Keep the crater wall on the right side while moving forward.
Look for colony wreckage	The ruined colony building marks the nearby early lithium pickup.
Continue southeast	The Great Jaw is a short distance beyond the ruined building.

The route is not extremely far, but it is more dangerous than normal early gathering. This is not the same as picking up Titanium outside the Lifepod. The area expects better oxygen planning and faster movement.

How To Get Lithium From The Great Jaw

To get lithium from The Great Jaw, enter the mouth area, use the Sonic Resonator to break lithium blocks inside the central tonsil structure, grab the lithium, and escape before the jaw closes.

The Great Jaw is the risky part of the early lithium route. The lithium is inside the mouth, around the central tonsil structure covered with purple strands. Once those strands are triggered, the jaw begins closing, which turns the whole thing into a fast smash and grab.

The Sonic Resonator is required because the lithium blocks need to be broken before they can be collected. Swim in, break the deposit, pick up the lithium, and leave immediately. Hanging around inside a closing giant mouth is usually poor life strategy, even by survival game standards.

Great Jaw Step	What To Do
Refill oxygen outside	Use nearby Oxygen Tunics before entering.
Enter the jaw	Move toward the central tonsil structure.
Use Sonic Resonator	Break the lithium blocks inside.
Grab the lithium	Collect quickly after breaking the deposit.
Escape fast	The jaw starts closing after the purple strands are triggered.

If the Sonic Resonator is not unlocked yet, this lithium route is not ready. The Subnautica 2 Lead guide can help with one of the key material steps connected to Sonic Resonator progression.

First Free Lithium Near The Colony Wreckage

The first easier lithium piece is found outside the ruined colony building near The Great Jaw, sitting on a table in a fragment of coral dome.

This pickup matters because it does not require entering The Great Jaw first. The table lithium gives an early piece before taking the riskier mouth route, and it can respawn over time.

Free Lithium Detail	Info
Location	Outside the ruined colony building near The Great Jaw
Exact spot	On a table in a coral dome fragment
Tool required	No Sonic Resonator needed for this pickup
Respawn	The pickup can respawn over time

The ruined building is also worth checking because the High Capacity Dive Tank recipe card can be found inside if it has not been collected yet. That is a nice little bonus, because lithium is directly connected to oxygen progression.

What To Bring Before Getting Lithium

The best lithium trip setup includes the Sonic Resonator, Standard Air Tank, Air Bladders, Basic Fins, and Wakemaker mobility tool.

The Great Jaw route is mostly about speed and oxygen control. The nearby Oxygen Tunics help, but relying only on them is risky if the jaw route goes badly. Extra oxygen tools and better movement make the trip much safer.

Item Or Upgrade	Why It Helps
Sonic Resonator	Required to break lithium blocks inside The Great Jaw.
Standard Air Tank	Gives enough oxygen to handle the route more safely.
Air Bladders	Emergency oxygen backup if the route takes too long.
Basic Fins	Improves movement speed during the escape.
Wakemaker	Helps move faster through the danger window.
Dash Biomod	Useful for escaping The Great Jaw after triggering the strands.

The Dash Biomod from the Biomod terminal in the Welcome Center ruin south of the Lifepod is especially useful if the jaw timing feels tight. It gives a better escape window after the purple strands are triggered.

Later Lithium Location In Hot Caves

After unlocking the Heat Tolerance Adaptation, lithium can be found more easily in the hot caves below the Tadpole Pens.

This later route is much better for bulk lithium because it does not rely on constantly visiting The Great Jaw. The catch is that Heat Tolerance is required first, since the volcanic vent zone is not safe without it.

Lithium Route	Best Time To Use It	Why
The Great Jaw	Early lithium route	Available before Heat Tolerance, but dangerous and awkward.
Hot caves below Tadpole Pens	Later lithium route	Better lithium source after Heat Tolerance is unlocked.

The practical answer is simple: use The Great Jaw for early lithium, then switch to the hot caves once Heat Tolerance opens the volcanic vent zone. The first route gets progression moving. The second route makes farming less ridiculous.

What Lithium Is Used For In Subnautica 2

Lithium is mainly used for Plasteel Ingots early on, including the upgrade path for better diving tank progression.

Early lithium demand is not huge, but the resource feels important because the first pieces are so specific to find. One Plasteel Ingot can be enough to move the High Capacity Air Tank route forward, which makes the Great Jaw trip worth doing even if it only gives a small amount at first.

Lithium Use	Why It Matters
Plasteel Ingot	Used for stronger crafted materials and early tank upgrade progression.
Lithium Grains	Part of later lithium based crafting chains.
Portable Oxygen Generator	Connects lithium to safer exploration and oxygen support.
Current Ring	Another later recipe that can use lithium.

If Titanium Ingots are holding up the Plasteel route or other processed materials, the Subnautica 2 Titanium Ingots guide covers how to unlock the Processor and turn Titanium into ingots.

Why You Cannot Find Lithium

If lithium is not showing up in Subnautica 2, the search is probably too close to the Lifepod, missing The Great Jaw route, or missing the Sonic Resonator needed for the mouth deposits.

Problem	Likely Cause	Fix
No lithium near early caves	Lithium is not a normal starter loop resource.	Go southwest toward The Great Jaw instead.
Found the ruined building but no lithium	The table pickup may have been missed.	Check outside the building, on the table in the coral dome fragment.
Cannot break lithium inside The Great Jaw	The Sonic Resonator is missing.	Unlock the Sonic Resonator before trying to mine the blocks.
Dying or running out of oxygen inside The Great Jaw	The route is being attempted without enough mobility or oxygen support.	Bring Air Bladders, Basic Fins, Wakemaker, and use Oxygen Tunics outside the jaw.
Need more lithium later	The Great Jaw route is awkward for repeated farming.	Unlock Heat Tolerance and farm hot caves below the Tadpole Pens.

Lithium is one of the first resources that feels like a location puzzle instead of a normal gathering task. Once The Great Jaw route is known, the issue becomes preparation. Swim fast, grab the material, and do not let the giant mouth turn the lithium run into a nature documentary.

Final Blurb

The main Subnautica 2 lithium location is The Great Jaw southwest of the Lifepod. A first safer lithium piece can be found on a table near the ruined colony building, while more lithium can be mined inside The Great Jaw with the Sonic Resonator.

The early route is dangerous because the jaw closes after the purple strands are triggered, so oxygen and movement upgrades make a real difference. Later, once Heat Tolerance is unlocked, lithium becomes easier to farm in the hot caves below the Tadpole Pens. The smart route is to grab enough early lithium for key upgrades, then switch to the safer later source when the game finally stops asking for mining inside a giant mouth. Very normal. Very relaxing. Definitely not cursed at all.

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