The following is a daily review of base metals transactions published on June 20 by Amalgamated Metal Trading Limited (AMT), a leading brokerage of the London Metal Exchange (LME). Copper: After a sharp decline, the technical side may peak. Aluminium: The expected resistance is $1800. Zinc: Weak up, if the short-term can close above 1320 US dollars, the market outlook is expected to continue to rise, otherwise it will explore 1280 US dollars. Tin: It is expected that CTA buying will still support the market. Lead: It is expected to rise in the short term. Nickel: Expected support of 16225-16250 USD is stronger.