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. Appendix-4-criticality and . Gloser, Appendix 5 -Identify critical suppliers Appendix 6 ? Aluminium consumption in Appendix 7 -Aluminium supply chain, adapted from Egloff (2013) Appendix 8 -LME price graph -3 months Buyer, Mouak, 2002.

$. Option, $. Not, $. , and $. Chosen, $ Suppliers$are$dipping$ into$the$RM$stocks$ bought$defined$price

$. Have, $. Reporting, $. Forecasting, and $. , $ Option$contract$Not$ mentionedt$chosen$ All( Risk( committee( Not$mentioned$$ Not$mentioned$$ Yes,$risk$at$a$high$ position$in$the$ company'$strategy$

$. Not, $. Not, $. , and $. , Used$to$lock$in$a$ price$per$quarter,$ hedging$via$the$ suppliers:$now$the$ committee$is$taking$ care$of$that$ Financial( and( supplier( failure( risks( Contract( clauses

$. Not and $. , Agreement$with$the$ supplier:$have$the$ volumes$but$agree$ to$buy$when$ company$D$decides