(b) Investments under equity method - The investments for which the Group has the ability to exercise significant influence are accounted for under the equity method. Under the equity method, original investments are recorded at cost and adjusted by the Group's share of undistributed earnings or losses of these entities, the amortization of intangible assets recognized upon purchase price allocation and dividend distributions or subsequent investments. All unrecognized inter-company profits and losses have been eliminated under the equity method.

(e) Accounts receivable - Accounts receivable primarily represent amounts due from customers, that are typically non-interest bearing and are initially recorded at invoiced amount. The Group reviews its accounts receivable on a periodic basis and records allowances when there is a doubt as to the collectability of the balance. In evaluating the collectability of the accounts receivable balances, the Group considers various factors, including the age of the balance, customer specific facts and economic conditions. Accounts receivable balances are charged off against the allowance after all means of collection have been exhausted and the potential for recovery is considered remote. The Group does not have any off-balance-sheet credit exposure related to its customers.

(f) Inventories - Inventories are stated at the lower of cost determined by the first in first out method, or market value. Work-in-progress and finished goods consist of raw materials, direct labour and overheads associated with the manufacturing process. Write down of potential obsolete or slow moving inventories is recorded based on management's assumptions about future demands and market conditions.

(g) Property, plant and equipment - Property, plant and equipment are stated at cost less accumulated depreciation. Depreciation is computed on a straight line basis over the estimated useful lives of 10 years for machinery and equipment and 2 to 5 years for other property, plant and equipment. Assets held under capital leases are depreciated over the shorter of their lease period or estimated useful lives on the same basis as owned assets unless the ownership of these assets transfers to the Group by the end of the lease term over the estimated useful lives.

(h) Impairment or disposal of long-lives assets - The Group reviews its long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may no longer be recoverable. When these events occur, the Group measures impairment by comparing the carrying value of the long-lived assets to the estimated undiscounted future cash flows expected to result from the use of the assets and their eventual disposition. If the sum of the expected undiscounted cash flow were to be less than the carrying amount of the assets, the Group would recognize an impairment loss based on the fair value of the assets.

The risk with respect to accounts receivables is mitigated by credit evaluations performed on the customers and ongoing monitoring of outstanding balances. The Group establishes an allowance for doubtful accounts based upon estimates, factors surrounding the credit risk of specific customers and other information. Accounts receivable are charged against the allowance after all means of collection have been exhausted and the potential for recovery is considered remote. The accounts receivable from customers with individual balances over 10% of the accounts receivable represent 62% and 81% of the balances of accounts receivable as of March 31, 2011 and 2012, respectively.

Revenue from sales of products is recognized when the title is passed to customers upon shipment and when collectability is reasonably assured. The Group does not provide its customers with the right of return (except for quality) or price protection. There are no customer acceptance provisions associated with the Group's products. All sales are based on firm customer orders with fixed terms and conditions, which generally cannot be modified.

(l) Foreign currency translations and transactions - The functional and reporting currency of the Company is the United States Dollars ("U.S. dollars"). All transactions in currencies other than functional currencies of the Company during the year are remeasured at the exchange rates prevailing on the respective transaction dates. Monetary assets and liabilities existing at the balance sheet date denominated in currencies other than functional currencies are remeasured at the exchange rates on that date. Exchange differences are recorded in the consolidated statements of operations.

The books and records of the Company's major subsidiaries are maintained in their respective local currencies, the Hong Kong dollars or Renminbi, which are also their respective functional currencies. All assets and liabilities are translated at the rates of exchange prevailing at the balance sheet date and all income and expense items are translated at the average rates of exchange over the year. All exchange differences arising from the translation of subsidiaries' financial statements are recorded as a component of comprehensive income (loss).

(m) Income taxes - Deferred tax assets and liabilities are determined based on the difference between the financial reporting and tax bases of assets and liabilities, and operating loss and tax credit carryforwards using enacted tax rates that will be in effect for the period in which the differences are expected to reverse. The Group records a valuation allowance against the amount of deferred tax assets that it determines is not more likely than not of being realized. The effect on deferred taxes of a change in tax rates is recognized in income in the period that includes the enactment date.

The Group recognizes the effect of income tax positions only if those positions are more likely than not of being sustained. Recognized income tax positions are measured at the largest amount that is greater than 50% likely of being realized. Changes in recognition or measurement are reflected in the period in which the change in judgment occurs. The Group records interest related to unrecognized tax benefits and penalties, if any, within income tax benefits (expenses).

(n) Use of estimates - The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses for the periods presented. Actual results could differ from those estimates. The significant accounting estimate, which has had an impact on the consolidated financial statements, includes allowances for doubtful receivables.

(o) Stock-based compensation - The Group has a stock-based employee compensation plan, as be more fully described in note 16. The Group measures the cost of employee services received in exchange for an award of equity instruments based on the grant-date fair value of the award. That cost is recognized over the period during which an employee is required to provide service, the requisite service period (usually the vesting period), in exchange for the award. The grant-date fair value of employee stock options and similar instruments are estimated using Black-Scholes option-pricing model.

Shares issued to consultants in exchange for consulting services are measured at the fair values of the services received, which are measured by reference to the fair value of the shares granted because fair value of consulting service received cannot be reliably measured. The fair values of the services received are recognized as expenses, with a corresponding increase in equity (additional paid-in capital), when the counterparties render services, unless the services qualify for recognition as assets.

(q) Net income per share - Basic net income per share is computed by dividing net income attributable to the Company by the weighted average number of common shares outstanding during the year. Diluted net income attributable to the Company per share give effect to all dilutive potential common shares outstanding during the year. The weighted average number of common shares outstanding is adjusted to include the number of additional common shares that would have been outstanding if the dilutive potential common shares had been issued.

(r) Comprehensive income (loss) - Comprehensive income (loss) is defined to include all changes in equity except those resulting from investments by owners and distributions to owners. Comprehensive income (loss) for the years, which comprises foreign currency translation adjustments and net income (loss), has been disclosed within the consolidated statements of equity and comprehensive income (loss).

(s) Fair value measurement and financial instruments - The Group applies a fair value hierarchy that requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. A financial instrument's categorization within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. Under this hierarchy, there are three levels of inputs that may be used to measure fair value:

Level 2 applies to assets or liabilities for which there are inputs other than quoted prices included within Level 1 that are observable for the asset or liability such as quoted prices for similar assets or liabilities in active markets; quoted prices for identical asset or liabilities in markets with insufficient volume or infrequent transactions (less active markets); or model-derived valuations in which significant inputs are observable or can be derived principally from, or corroborated by, observable market data.

The Group did not have any financial instruments that were required to be measured at fair value on a recurring basis as of March 31, 2011 and 2012. As of March 31, 2011 and 2012, the Group did not have any nonfinancial assets and liabilities that are recognized or disclosed at fair value in the financial statements, at least annually, on a recurring basis, nor did the Group have any assets or liabilities measured at fair value on a non-recurring basis.

The carrying amounts of financial instruments, which consist of cash and cash equivalents, restricted cash, accounts receivable, amount due from an equity method investee, short-term borrowings, long-term loans, accounts payable and other liabilities approximate their fair values due to the short term nature of these instruments. The carrying amount of obligations under capital leases also approximates fair value due to the variable nature of the interest calculations.

(u) Recent changes in accounting standards - In May 2011, FASB issued Accounting Standard Update ("ASU") 2011-04, Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs, ("ASU 2011-04"). ASU 2011-04 amends FASB Accounting Standard Codification ("ASC") 820, Fair Value Measurements, ("FASB ASC 820"), providing a consistent definition and measurement of fair value, as well as similar disclosure requirements between U.S. GAAP and International Financial Reporting Standards. ASU 2011-04 changes certain fair value measurement principles, clarifies the application of existing fair value measurement and expands the FASB ASC 820 disclosure requirements, particularly for Level 3 fair value measurements. ASU 2011-04 will be effective for the Company's fiscal year beginning January 1, 2012. The adoption of ASU 2011-04 is not expected to have a material effect on the Company's consolidated financial statements, but may lead to certain additional disclosures.

In September 2011, the FASB issued ASU 2011-05, Presentation of Comprehensive Income, ("ASU 2011-05"), which improves the comparability, consistency, and transparency of financial reporting and increases the prominence of items reported in other comprehensive income ("OCI") by eliminating the option to present components of OCI as part of the statement of changes in stockholders' equity. The amendments in this standard require that all non-owner changes in stockholders' equity be presented either in a single continuous statement of comprehensive income or in two separate but consecutive statements. The amendments in this standard do not change the items that must be reported in OCI, when an item of OCI must be reclassified to net income, or change the option for an entity to present components of OCI gross or net of the effect of income taxes. The amendments in ASU 2011-05 are effective for annual periods beginning January 1, 2012 and are to be applied retrospectively. However, in December 2011 this ASU was amended by ASU 2011-12, Deferral of the Effective Date for Amendments to the Presentation of Reclassifications of Items Out of Accumulated Other Comprehensive Income in Accounting Standards Update No. 2011-05 ("ASU 2011-12"), which defers the requirement to present on the face of the financial statements the effects of reclassifications out of accumulated other comprehensive income on the components of net income and other comprehensive income. The amendments in these ASUs are effective for fiscal years, and interim periods within those years, beginning after December 15, 2011 and are to be applied retrospectively, with early adoption permitted. The adoption of the provisions of ASU 2011-05 and ASU 2011-12 is not expected to have a material impact on the Company's consolidated financial statements.

In September 2011, the FASB issued ASU 2011-09, Compensation - Retirement Benefits - Multiemployer Plans (Subtopic 715-80), Disclosures about an Employer's Participation in a Multiemployer Plan, ("ASU 2011-09"). ASU 2011-09 requires an employer that participates in multiemployer pension plans, to provide additional quantitative and qualitative disclosures in order to provide users with more detailed information about the employer's involvement in multiemployer pension plans. In addition, it includes changes in the disclosures required for multiemployer plans that provide postretirement benefits other than pensions. ASU 2011-09 is effective for the Company's fiscal year ending after December 15, 2011. The adoption of the amendments to ASU 2011-09 is not expected to have a material impact on the Company's consolidated financial statements.