The document summarizes news from the Business Council of Mongolia newsletter. It reports on several stories related to Mongolia's mining and business sector: Turquoise Hill Resources' stock dropped 26% as rights to purchase new shares began trading, following the company's $2.4 billion rights offering to repay debt; Kincora Copper announced a $6.6 million write-down after Mongolia revoked 106 mineral exploration licenses, including two held by Kincora; Aspire Mining signed memoranda for potential purchase of 3.3 million tons per year of coking coal from its Ovoot project in Mongolia by Russian buyers.