Samsung Inc. hired you as a consultant to help estimate its cost of capital $($WACC$).$ You have been provided with the following data:

$1.$ Samsung currently has one type of bond outstanding. The bond is a $20$ year bond and is making quarterly coupon payment. It was issued $5$ years ago at par with a total face value of $$100$ million and is carrying a $6\%$ coupon rate at issuance. Each bond is currently trading above par at $$1075.$

$2.$ A typical saving account at a bank is offering an interest rate of $0\mathrm{.}5\%,$ GIC is currently offering a

return of $1\mathrm{.}5\%$ and a $25-$year Government of Canada bond is currently yielding at $4\mathrm{.}0\%.$

$3.$ The beta of Samsung$$s stock is $0\mathrm{.}8$ and the market risk premium of the Korea Composite Stock Price Index is $4\mathrm{.}5\%$

$4.$ There is currently $13$ million shares of Samsung stock trading publicly on the Korean stock exchange.

Samsung just paid a dividend of $$1\mathrm{.}8$ per share and the dividend is expected to grow at a constant rate of $3\%$ forever. The actual return of the stock as at today is $12\%.$

$5.$ The tax rate associated with Samsung Inc. is $30\%$

What is the WACC of Samsung Inc.?