diff --git a/contracts/IdaFactory.sol b/contracts/IdaFactory.sol
index f7d76b7..bdf9501 100644
--- a/contracts/IdaFactory.sol
+++ b/contracts/IdaFactory.sol
@@ -17,14 +17,14 @@ contract IdaFactory {
 
   event IdaCreated(address indexed ida);
 
-  SimpleTokenSellerFactory simpleTokenSellerFactory;
   ImpactPromiseFactory impactPromiseFactory;
   FluidEscrowFactory fluidEscrowFactory;
   ClaimsRegistry public claimsRegistry;
+  SimpleTokenSeller public simpleTokenSeller;
 
 
-  constructor(SimpleTokenSellerFactory _simpleTokenSellerFactory, ImpactPromiseFactory _impactPromiseFactory, FluidEscrowFactory _fluidEscrowFactory, ClaimsRegistry _claimsRegistry) public {
-    simpleTokenSellerFactory = _simpleTokenSellerFactory;
+  constructor(SimpleTokenSellerFactory _stsFactory, ImpactPromiseFactory _impactPromiseFactory, FluidEscrowFactory _fluidEscrowFactory, ClaimsRegistry _claimsRegistry) public {
+    simpleTokenSeller = _stsFactory.createSimpleTokenSeller();
     impactPromiseFactory = _impactPromiseFactory;
     fluidEscrowFactory = _fluidEscrowFactory;
     claimsRegistry = _claimsRegistry;
@@ -45,8 +45,7 @@ contract IdaFactory {
     Ida ida = new Ida(_paymentToken, promiseToken, escrow, claimsRegistry, _name, _outcomesNumber, _outcomesPrice, _validator, _endTime, msg.sender);
     escrow.transferOwnership(address(ida));
     promiseToken.addMinter(address(ida));
-    //SimpleTokenSeller sts = simpleTokenSellerFactory.createSimpleTokenSeller(ida.paymentToken(), ida.paymentRights(), msg.sender);
-
+    simpleTokenSeller.addMarket(msg.sender, PaymentRights(escrow.recipient()), _paymentToken);
     emit IdaCreated(address(ida));
     return ida;
   }
diff --git a/contracts/SimpleTokenSeller.sol b/contracts/SimpleTokenSeller.sol
index 3704299..376e937 100644
--- a/contracts/SimpleTokenSeller.sol
+++ b/contracts/SimpleTokenSeller.sol
@@ -9,7 +9,7 @@ import './PaymentRights.sol';
  * by automatically deploying and linking payment rights seller contract
  *
  */
-contract SimpleTokenSeller is Ownable {
+contract SimpleTokenSeller {
   using SafeMath for uint256;
 
   event MarketAdded(address indexed operator, PaymentRights offeredToken, ERC20 indexed paymentToken);
@@ -27,7 +27,7 @@ contract SimpleTokenSeller is Ownable {
 
   mapping (address => Market) public markets;
 
-  function addMarket(address _operator, PaymentRights _offeredToken, ERC20 _paymentToken) public onlyOwner {
+  function addMarket(address _operator, PaymentRights _offeredToken, ERC20 _paymentToken) public {
     markets[_operator] = Market(_paymentToken, _offeredToken, 0, 0);
     emit MarketAdded(_operator, _offeredToken, _paymentToken);
   }
@@ -81,6 +81,20 @@ contract SimpleTokenSeller is Ownable {
     return FULL_PERCENTAGE.sub(market.discount).mul(unRedeemedAmount).div(FULL_PERCENTAGE);
   }
 
+  function getSupply(address operator) public view returns(uint256) {
+    Market storage market = markets[operator];
+    require(address(market.paymentToken) != address(0), "There is no market defined for a given Ida");
+
+    return market.supply;
+  }
+
+  function getDiscount(address operator) public view returns(uint256) {
+    Market storage market = markets[operator];
+    require(address(market.paymentToken) != address(0), "There is no market defined for a given Ida");
+
+    return market.discount;
+  }
+
 }
 
 contract SimpleTokenSellerFactory {
diff --git a/test/ida-factory.test.js b/test/ida-factory.test.js
index f661923..79d6be1 100644
--- a/test/ida-factory.test.js
+++ b/test/ida-factory.test.js
@@ -31,17 +31,16 @@ contract('Ida Factory', function ([owner, validator, investor, unauthorised]) {
     let escrowFactory = await FluidEscrowFactory.new();
     claimsRegistry = await ClaimsRegistry.new();
     factory = await IdaFactory.new(stsFactory.address, impactPromiseFactory.address, escrowFactory.address, claimsRegistry.address, {gas: 6500000});
+    sts = await Sts.at(await factory.simpleTokenSeller());
   });
 
   it("should create a new Ida", async function () {
     let end = (await time.latest()).add(time.duration.years(1));
-    let tx = await factory.createIda(usd.address, "TEST", 10, 100, validator, end, {gas: 7000000});
+    let tx = await factory.createIda(usd.address, "TEST", 10, 100, validator, end, {gas: 6000000});
     console.log("Gas used: " + tx.receipt.gasUsed);
 
     let idaAddress = tx.receipt.logs[0].args.ida;
-    let stsAddress = tx.receipt.logs[0].args.sts;
     ida = await Ida.at(idaAddress);
-    sts = await Sts.at(stsAddress);
 
     paymentRights = await FluidToken.at(await ida.paymentRights());
     (await paymentRights.balanceOf(owner)).should.be.bignumber.equal('1000');
@@ -60,7 +59,7 @@ contract('Ida Factory', function ([owner, validator, investor, unauthorised]) {
 
   it("should not allow buying before price is set up", async function () {
     await usd.mint(investor, 100);
-    await sts.buy(100, {from: investor}).shouldBeReverted();
+    await sts.buy(owner, 100, {from: investor}).shouldBeReverted();
   });
 
 
@@ -73,15 +72,15 @@ contract('Ida Factory', function ([owner, validator, investor, unauthorised]) {
   it("should allow updating conditions by owner", async function () {
     await sts.updateConditions(100, 50, {from: owner});
 
-    (await sts.currentSupply()).should.be.bignumber.equal('100');
-    (await sts.currentDiscount()).should.be.bignumber.equal('50');
+    (await sts.getSupply(owner)).should.be.bignumber.equal('100');
+    (await sts.getDiscount(owner)).should.be.bignumber.equal('50');
   });
 
 
   it("should buy tokens by investor", async function () {
     await usd.approve(sts.address, 100, {from:investor});
 
-    await sts.buy(50, {from: investor});
+    await sts.buy(owner, 50, {from: investor});
 
     (await usd.balanceOf(owner)).should.be.bignumber.equal('25');
     (await usd.balanceOf(investor)).should.be.bignumber.equal('75');
diff --git a/test/ida.test.js b/test/ida.test.js
index 4e9e3d3..5685bc3 100644
--- a/test/ida.test.js
+++ b/test/ida.test.js
@@ -28,6 +28,7 @@ contract('Impact Delivery Agreement', function ([owner, validator, funder, inves
     let escrowFactory = await FluidEscrowFactory.new();
     claimsRegistry = await ClaimsRegistry.new();
     factory = await IdaFactory.new(stsFactory.address, impactPromiseFactory.address, escrowFactory.address, claimsRegistry.address, {gas: 6500000});
+    sts = await Sts.at(await factory.simpleTokenSeller());
   });
 
 
@@ -37,9 +38,7 @@ contract('Impact Delivery Agreement', function ([owner, validator, funder, inves
     console.log("Gas used for Ida deployment: " + tx.receipt.gasUsed);
 
     let idaAddress = tx.receipt.logs[0].args.ida;
-    let stsAddress = tx.receipt.logs[0].args.sts;
     ida = await Ida.at(idaAddress);
-    sts = await Sts.at(stsAddress);
 
     paymentRights = await FluidToken.at(await ida.paymentRights());
     (await paymentRights.balanceOf(owner)).should.be.bignumber.equal('1000');
@@ -68,7 +67,7 @@ contract('Impact Delivery Agreement', function ([owner, validator, funder, inves
     (await ausd.balanceOf(investor)).should.be.bignumber.equal('100');
     (await paymentRights.balanceOf(investor)).should.be.bignumber.equal('0');
 
-    await sts.buy(100, {from: investor});
+    await sts.buy(owner, 100, {from: investor});
 
     (await ausd.balanceOf(owner)).should.be.bignumber.equal('50');
     (await ausd.balanceOf(investor)).should.be.bignumber.equal('50');