and buildings, cash on deposit in our name at local banks, the gross value of new and used equipment (including future equipment that might be used for indium phosphide and germanium substrates production), the deemed value for our customer list or the end user of our substrates, for example, the end users of 3-D sensing VCSELs (vertical cavity surface emitting lasers), a deemed value for employment of local citizens, a deemed value for our proprietary process technology, other intellectual property, other intangibles and additional items of value. There is no timeline or deadline by which this must be accomplished, rather it is a good faith covenant entered into between AXT and the Dingxing local government. Further, there is no specific penalty contemplated if either party breaches the agreement. However, the agreement does state that each party has a right to seek from the other party compensation for losses. Under certain conditions, the Dingxing local government may purchase the land and building at the appraised value. We believe that such cooperation agreements are normal, customary and usual in China and that the future valuation is flexible. We have a similar agreement with the city of Kazuo, China, although on a smaller scale. The total investment targeted by AXT in Kazuo is approximately $15 million in value, assets and capital. In addition, BoYu has a similar agreement with the city of Kazuo. The total investment targeted by BoYu in Kazuo is approximately $8 million in value, assets and capital.
Purchase Obligations with Penalties for Cancellation
In the normal course of business, we issue purchase orders to various suppliers. In certain cases, we may incur a penalty if we cancel the purchase order. As of June 30, 2021, we do not have any outstanding purchase orders that will incur a penalty if cancelled by the Company.
Legal Proceedings
From time to time we may be involved in judicial or administrative proceedings concerning matters arising in the ordinary course of business. We do not expect that any of these matters, individually or in the aggregate, will have a material adverse effect on our business, financial condition, cash flows or results of operations.
Note 13. Other Income (Expense), Net
Other income (expense), net for the three months ended June 30, 2021 and 2020, includes a grant of $0 and $1.6 million, respectively, from a Chinese provincial government agency as an award for relocating to its province. Other income (expense), net for the six months ended June 30, 2021 and 2020, includes a grant of $0.1 million and $3.0 million, respectively, from a Chinese provincial government agency as an award for relocating to its province.
In addition, we incurred a foreign currency transaction exchange gain of $34,000 and $51,000 for the three months ended June 30, 2021 and 2020, respectively. We incurred a foreign currency transaction exchange loss of $140,000 and gain of $9,000 for the six months ended June 30, 2021 and 2020, respectively.
Note 14. Income Taxes
We account for income taxes in accordance with ASC Topic 740, Income Taxes (“ASC 740”), which requires that deferred tax assets and liabilities be recognized using enacted tax rates for the effect of temporary differences between the book and tax bases of recorded assets and liabilities. ASC 740 also requires that deferred tax assets be reduced by a valuation allowance if it is more likely than not that a portion of the deferred tax asset will not be realized. Our deferred tax assets have been reduced to 0 by a valuation allowance.
We provide for income taxes based upon the geographic composition of worldwide earnings and tax regulations governing each region, particularly China. The calculation of tax liabilities involves significant judgment in estimating the impact of uncertainties in the application of complex tax laws, particularly in foreign countries such as China.
We recognize interest and penalties related to uncertain tax positions in income tax expense. Income tax expense for the three and six months ended June 30, 2021 includes 0 interest and penalties. As of June 30, 2021, we have 0 accrued interest and penalties related to uncertain tax positions. We file income tax returns in the U.S. federal, various states and foreign jurisdictions. Currently, there is no tax audit in any of the jurisdictions and we do not expect there will be any significant change to this.