> For the complete documentation index, see [llms.txt](https://docs.cork.tech/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cork.tech/user-guides/provide-liquidity/mint-tokens.md).

# Mint Tokens

How to Mint Swap Token and Principal Token to earn a premium or yield

Provide cover against credit and duration risks, by depositing [**collateral assets**](/core-concepts/collateral-asset.md) into a [**Cork Pool**](/core-concepts/cork-pool.md) to mint shares of Cork [**Principal Token**](/core-concepts/principal-token.md) (cPT) and Cork [**Swap Token**](/core-concepts/swap-token.md) (cST).

This **"Mint" operation** on Cork:

* deposits [**Collateral Asset**](/core-concepts/collateral-asset.md) into one of many [**Cork Pools**](/core-concepts/cork-pool.md)
* mints share tokens (i.e. increases circulating supply of cPT & cST tokens of that Cork Pool)

***

## How it works

At maturity, [**Principal Tokens**](/core-concepts/principal-token.md) can be redeemed for underlying assets — typically the [**Collateral Asset**](/core-concepts/collateral-asset.md), or alternatively some [**Reference Asset**](/core-concepts/reference-asset.md), **only if** [**Cork Swap Token**](/core-concepts/swap-token.md) holders have exercised their cover (and these are not repurchased *by arbitragers before the Cork* [*Swap Token*](/core-concepts/swap-token.md)*'s expiry date).*

This mechanism is how [**Principal Token**](/core-concepts/principal-token.md) holders underwrite duration and credit risks.

{% hint style="info" %}
Cork [**Principal Tokens**](/core-concepts/principal-token.md) are expected to start at a **discounted price** the moment they are minted, and gradually move toward the value of **1** [**Collateral Asset**](/core-concepts/collateral-asset.md) as they approach maturity — *as long as Cork* [*Swap Tokens*](/core-concepts/swap-token.md) *are not exercised (or exercised tokens are fully repurchased by arbitragers before the Cork* [*Swap Token*](/core-concepts/swap-token.md)*'s expiry date).*
{% endhint %}

***

## How to obtain Cork Tokens

You may choose to **mint Cork** [**Principal Tokens**](/core-concepts/principal-token.md) **&** [**Swap Tokens**](/core-concepts/swap-token.md)**,** or you may choose to **purchase them from a resale market** (such as Airswap OTC):

* **If minting principal tokens:**
  * You deposit and lock up one [Collateral Asset](/core-concepts/collateral-asset.md) for each Cork [Principal Token](/core-concepts/principal-token.md) to be minted. As part of this process, you receive an equivalent amount of Cork [Swap Token](/core-concepts/swap-token.md).
  * This lock applies until the expiry of the [Cork Pool](/core-concepts/cork-pool.md) (which coincides with the expiry of the Cork [Swap Token](/core-concepts/swap-token.md), and maturity of the Cork [Principal Token](/core-concepts/principal-token.md)).
    * To redeem the Cork [Principal Token](/core-concepts/principal-token.md) early, you would have to obtain and burn the equivalent amount of Cork [Swap Token](/core-concepts/swap-token.md) too, in order to unlock and withdraw collateral assets early. This is called an **"Unwind" operation**.
  * Your "yield" or premium comes from the sale of your minted Cork [Swap Tokens](/core-concepts/swap-token.md) on a resale market (such as Airswap).
* **If buying principal tokens:**
  * Before maturity, Cork [**Principal Tokens**](/core-concepts/principal-token.md) are sold at a discount (from their expected value at maturity).
  * At maturity, Cork [**Principal Tokens**](/core-concepts/principal-token.md) can be redeemed for an equivalent amount of [**Collateral Asset**](/core-concepts/collateral-asset.md) (or [**Reference Asset**](/core-concepts/reference-asset.md)) from the associated [**Cork Pool**](/core-concepts/cork-pool.md).
  * Increased demand for Cork [**Principal Tokens**](/core-concepts/principal-token.md) on the resale market can drive up their price, reducing the discount (on your purchase) and resulting in a lower implied fixed yield rate to maturity (YTM).
  * Increased supply of Cork [**Principal Tokens**](/core-concepts/principal-token.md) on the resale market can lower their price, increasing the discount (on your purchase) and resulting in a higher implied fixed yield rate to maturity (YTM).

***

## Mint Both Principal & Swap Token

To mint both Cork Principal Tokens (cPT) and Cork Swap Tokens (cST), deposit Collateral Assets into a Cork Pool via the dApp. You can then resell the Cork Swap Tokens (e.g. on Airswap OTC) to earn a premium.

***

## Buy Principal Token only

To buy Cork Principal Tokens at a discount, purchase them from a resale market (such as Airswap OTC). At maturity, redeem them for the underlying Collateral Asset to earn an implied fixed yield.