Quick answer: In Crimson Forest, an Exotic Copper Ingot is on the ground beside a stake-blocked gateway near the Thieves’ Camp Crane Bell. Quick Hand Zhang also sells it for 1,040 Remnant Dust.
What Exotic Copper Ingot does
Exotic Copper Ingot sits in the “Phantom Edge Upgrade Materials” category. Its card reads: “A copper ingot smelted from several unusual copper ores. Tough and scarce, it is even used by some orthodox sects as a form of wealth to fund supplies and provisions.” The effect line reads: “Required to upgrade Martial-type Phantom Edges to Lv. 10.”
Open Character > Phantom Edges and locate Hunter’s Chain Sickle, a Martial Phantom Edge. Its Lv. 1 card shows “Martial” above the name, with Damage 247 and Guard Break 213. It attacks at mid and long distances and can grapple to anchor points far away.
At a bell, select Upgrade Equipment to improve Phantom Edges. Up to Lv. 10, each type requires a different material:
- Martial: Exotic Copper Ingot
- Destruction: Darkfire Charcoal
- Artifice: Mechanical Gear
- Ranged: Ancient Timber
- Summon: Incense Ash
Exotic Copper Ingot location at the Thieves’ Camp
The ingot is in Chapter 1, in Crimson Forest, right next to a bell, so you can grab it the moment you arrive.
Two other nearby finds make the camp worth exploring. A scroll on a shelf inside the storage tent on the east side yields +455 Remnant Dust, while a book is tucked away in a cave at the northeast corner.
Buy Exotic Copper Ingot from Quick Hand Zhang
A brief climb from the Thieves’ Camp takes you to Quick Hand Zhang’s Crimson Forest hideout. Open Buy, choose Exotic Copper Ingot, then hold Space to complete the purchase. The price is 1,040 Remnant Dust each, with 6 available at this location. His hideouts in Village of Lu, Pangzhen and Meigu Village also stock it.
Martial upgrade materials past Lv. 10
Exotic Copper Ingot only takes a Martial Phantom Edge to Lv. 10. Two more copper materials cover the rest of the climb.
| Material | Martial-type levels | Zhang’s price |
|---|---|---|
 Exotic Copper Ingot | Up to Lv. 10 | 1,040 |
 Otherworldly Copper | Lv. 10–20 | 1,240 (Pangzhen, Meigu Village) |
 Forged Otherworldly Copper | Lv. 20 to max | Not in his stock |
Otherworldly Copper’s card reads: “Its raw ore is hard enough to resist blade and axe, yet its surface is riddled with holes corroded by something unnatural. It must be washed in strong acid and tempered in blazing fire, again and again, to produce this refined ingot.” Its effect: “Required to upgrade Martial-type Phantom Edges from Lv. 10–20.”
Forged Otherworldly Copper’s card reads: “After ten thousand hammer blows, Otherworldly Copper reveals mottled patterns across its surface. Study them with a still mind, and they resemble the paths of fists and the traces of blades, embodying the very essence of martial arts.” Its effect: “Required to upgrade Martial-type Phantom Edges from Lv. 20 to max level.”
