Metals & Mining 
Balance sheet risks reduced, 
but too early to chase the rally 
Dr. Copper not right this time: The short- to 
medium-term outlook for metals has changed little in the 
last quarter, but equities have rallied 22%, mainly due to 
copper prices, which are up 35% (the correlation 
between copper and the sector has been 82% in the last 
five years). The short-term pricing outlook for most 
metals has actually deteriorated marginally, and copper 
has been the notable exception, showing strength due to 
Chinese SRB buying – we expect this to moderate soon. 
We see relatively more value in steel than the miners 
currently, although we expect the news flow in both 
subsectors to remain unhelpful in the next 3-6 months. 
We are changing our house commodity price 
estimates: We now forecast a very shallow recovery; 
hence, we are cutting our 2010 estimates significantly as 
well, although these cuts are offset by our better 
cash-flow assumptions. 
We downgrade BHP Billiton to Underweight and 
Antofagasta to Equal-weight: After the recent 
significant outperformance versus the sector, 
Antofagasta and BHP are starting to look expensive on a 
DCF basis, despite their net cash and low-cost profiles. 
As balance sheets in the sector improve, we expect BHP 
to suffer from portfolio reallocation. It is also the acquirer 
in the sector with associated M&A risks. 
Copper is a key catalyst – if it falls as we expect, the 
stocks will fall with it: Although copper is only c.20% 
of BHP’s NPV, the share price over the last 10 years has 
correlated 84% with the copper price. We do not expect 
this time to be different, and strong balance sheets are 
unlikely to protect BHP Billiton and Antofagasta after the 
outperformance versus the sector, in our view. 
Balance sheets better – but risks still remain: During 
1Q09, companies in the sector have raised equity or 
convertible debt to degear and/or to lengthen the 
maturity profile of the debt. While we do not believe the 
degearing process is complete, the proactive steps 
reduce significantly the risk of corporate failures among 
the larger miners, in our view. 
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