the united kingdom plan is closed to future service accrual , but has a large number of deferred and current pensioners . movements in the underlying plan asset value and projected benefit obligation ( pbo ) are dependent on actual return on investments as well as our assumptions in respect of the discount rate , annual member mortality rates , future return on assets and future inflation . a change in any one of these assumptions could impact the plan asset value , pbo and pension charge recognized in the income statement . such changes could adversely impact our results of operations and financial position . for example , a 0.25 % change in the discount rate assumption would change the pbo by approximately $ 26 million while the net pension credit for 2017 would change by approximately $ 0.2 million . a 0.25 % change in the level of price inflation assumption would change the pbo by approximately $ 19 million and the net pension credit for 2017 would change by approximately $ 0.2 million . further information is provided in note 9 of the notes to the consolidated financial statements . 26 deferred tax and uncertain income tax positions as at december 31 , 2016 , no deferred taxes have been provided for on the unremitted earnings of our overseas subsidiaries as any tax basis differences relating to investments in these overseas subsidiaries are considered to be permanent in duration . we have no current intention to repatriate past or future earnings of our overseas subsidiaries and consider that these earnings have been reinvested overseas . if circumstances were to change that would cause these earnings to be repatriated an additional u.s. tax liability could be incurred , and we continue to monitor this position . the calculation of our tax liabilities involves evaluating uncertainties in the application of complex tax regulations . we recognize liabilities for anticipated tax audit issues based on our estimate of whether , and the extent to which , additional taxes will be required . if we ultimately determine that payment of these amounts is unnecessary , we reverse the liability and recognize a tax benefit during the period in which we determine that the liability is no longer necessary . we also recognize tax benefits to the extent that it is more likely than not that our positions will be sustained , based on technical merits , when challenged by the taxing authorities . to the extent that we prevail in matters for which liabilities have been established , or are required to pay amounts in excess of our liabilities , our effective tax rate in a given period may be materially affected . an unfavorable tax settlement may require cash payments and result in an increase in our effective tax rate in the year of resolution . a favorable tax settlement may be recognized as a reduction in our effective tax rate in the year of resolution . we report interest and penalties related to uncertain income tax positions as income taxes . for additional information regarding uncertain income tax positions , see note 10 of the notes to the consolidated financial statements . goodwill the company 's reporting units , the level at which goodwill is assessed for potential impairment , are consistent with the reportable segments . the components in each segment ( including products , markets and competitors ) have similar economic characteristics and the segments , therefore , reflect the lowest level at which operations and cash flows can be sufficiently distinguished , operationally and for financial reporting purposes , from the rest of the company . initially the company performs a qualitative assessment to determine whether it is more likely than not that the fair value of a segment is less than the carrying amount prior to performing the two-step goodwill impairment test . if a two-step test is required we assess the fair value based on projected post-tax cash flows discounted at the company 's weighted average cost of capital . at december 31 , 2016 we had $ 374.8 million of goodwill relating to our fuel specialties , performance chemicals and oilfield services segments . our impairment assessment concluded that there had been no impairment of goodwill in respect of those reporting segments . 27 while we believe our assumptions for impairment assessments are reasonable , they are subjective judgments , and it is possible that variations in any of the assumptions may result in materially different calculations of any potential impairment charges . property , plant and equipment and other intangible assets ( net of depreciation and amortization , respectively ) as at december 31 , 2016 we had $ 157.4 million of property , plant and equipment and $ 144.4 million of other intangible assets ( net of depreciation and amortization , respectively ) , that are discussed in notes 6 and 8 of the notes to the consolidated financial statements , respectively . these long-lived assets relate to all of our reporting segments and are being amortized or depreciated straight-line over periods of up to 17 years in respect of the other intangible assets and up to 25 years in respect of the property , plant and equipment . we continually assess the markets and products related to these long-lived assets , as well as their specific carrying values , and have concluded that these carrying values , and amortization and depreciation periods , remain appropriate . we also test these long-lived assets for any potential impairment when events occur or circumstances change which suggests that impairment may have occurred . story_separator_special_tag octane additives net sales : the year on year increase of $ 4.3 million was primarily due to the timing of demand with our one remaining refinery customer . gross margin : the year on year decrease of 3.9 percentage points is primarily driven by the timing and efficiency of production for our one remaining refinery customer . operating expenses : the year on year decrease of $ 2.2 million was due to the continuing efficient management of the cost base . other income statement captions pension credit/ ( charge ) : is non-cash , and was a $ 0.2 million net credit in 2015 compared to $ 3.3 million net charge in 2014 , primarily driven by lower interest cost on the projected benefit obligation . corporate costs : the year on year decrease of $ 0.4 million , related to $ 1.1 million lower legal , professional and other expenses in 2015 driven by the recovery of legal fees ; $ 1.8 million non-recurring professional costs in 2014 related to the acquisition of our independence business ; $ 1.4 million lower insurance claims due to non-recurring charges in 2014 relating to self-insured incidents ; which were partly offset by $ 3.1 million higher personnel-related compensation , including higher accruals for share-based compensation ; and the net $ 0.8 million release of a severance provision in 2014 . 37 adjustment to fair value of contingent consideration : the credit of $ 40.7 million relates to an adjustment of the carrying value of our liability for contingent consideration related to our independence acquisition of $ 51.4 million , partly offset by the accretion charge of $ 10.7 million . the carrying value of the contingent consideration is based on the estimated ebitda and free cash flow generated by the independence business through the period to october 31 , 2016. the contingent consideration payable is based on management 's latest forecasts of the business and on the current trading performance . the results of the business are particularly sensitive to the level of exploration , development and production activity of our customers in the oil and gas sector , this is directly affected by trends in oil prices . profit on disposal of subsidiary : the disposal of our aroma chemicals business generated a profit on disposal of $ 1.6 million in the third quarter . other net income/ ( expense ) : other net expense of $ 0.0 million primarily related to $ 1.4 million of losses on translation of net assets denominated in non-functional currencies in our european businesses , offset by gains of $ 1.4 million on foreign currency forward exchange contracts . in 2014 , other net income of $ 1.8 million primarily related to net gains of $ 3.4 million on foreign currency forward exchange contracts , partly offset by $ 1.6 million of losses on translation of net assets denominated in non-functional currencies in our european businesses . interest expense , net : was $ 4.0 million in 2015 and $ 3.4 million in 2014 , being primarily driven by higher borrowing in 2015 resulting from the funding required for the acquisition of our independence business in the fourth quarter of 2014. income taxes : the effective tax rate was 21.5 % and 24.2 % in 2015 and 2014 , respectively . the effective tax rate , as adjusted for changes to the fair value of contingent consideration , adjustments to income tax positions and the tax impact of other discrete items , was 20.1 % in 2015 compared with 24.9 % in 2014. the company believes that this adjusted effective tax rate , a non-gaap financial measure , provides useful information to investors and may assist them in evaluating the company 's underlying performance and identifying operating trends . in addition , management uses this non-gaap financial measure internally to evaluate the performance of the company 's operations and for planning and forecasting in subsequent periods . 38 replace_table_token_18_th in addition to those mentioned above , the following factors had a significant impact on the company 's effective tax rate as compared to the u.s. federal income tax rate of 35 % : replace_table_token_19_th the impact on the effective tax rate from profits earned in foreign jurisdictions with lower tax rates varies as the geographical mix of the company 's profits changes year on year . in 2015 , the company 's income tax expense benefited to a lesser degree from a proportion of its overall profits arising in switzerland than in 2014. this resulted in a $ 7.5 million benefit in switzerland ( 2014  $ 9.4 million ) . in addition , there was a $ 6.8 million benefit in relation to the united kingdom ( 2014  $ 7.9 million ) and a $ 0.3 million benefit in relation to germany ( 2014  $ 0.4 million ) , offset by a $ 0.1 million reduction in other jurisdictions . foreign income inclusions arise each year from certain types of income earned overseas being taxable under u.s. tax regulations . these types of income include subpart f income , principally from foreign based company sales in the united kingdom , including the associated section 78 tax gross up , and also from the income earned by certain overseas subsidiaries taxable under the u.s. tax regime . in 2015 , subpart f income and the associated section 78 gross up resulted in u.s. taxation of $ 4.7 million ( 2014  $ 5.0 million ) . certain overseas subsidiaries taxable under the u.s. tax regime incurred losses of $ 0.2 million ( 2014  $ 2.1 million income ) . foreign tax credits can fully or partially offset these incremental u.s. taxes from foreign income inclusions . the utilization of foreign tax credits varies year on year as this is dependent on a number of variable factors which are difficult to predict and may in certain 39 years prevent any offset of

liquidity and financial condition working capital the company believes that adjusted working capital , a non-gaap financial measure , provides useful information to investors in evaluating the company 's underlying performance and identifying operating trends . management uses this non-gaap financial measure internally to allocate resources and evaluate the performance of the company 's operations . items excluded from the adjusted working capital calculation are listed in the table below and represent factors which do not fluctuate in line with the day to day working capital needs of the business . replace_table_token_20_th in 2016 our working capital increased by $ 5.4 million driven by the acquisition of huntsman together with various movements year on year , some of which are included in the 40 reconciliation above to adjust our working capital to better represent the operational activity of the company . adjusted working capital shown above has increased by $ 13.4 million , with $ 12.2 million being related to the acquisition of huntsman . excluding the acquisition our adjusted working capital increased by $ 1.2 million , being primarily driven by higher receivables as the company ended the year with high demand from customers , partly offset by lower inventories year on year . excluding the huntsman acquisition , we had a $ 6.0 million increase in trade and other accounts receivable in 2016 primarily in our oilfield services segment . days ' sales outstanding in our fuel specialties segment decreased from 47 days to 45 days ; increased from 43 days to 55 days in our performance chemicals segment ; and increased from 44 days to 54 in our oilfield services segment . excluding the huntsman acquisition , we had a $ 7.3 million decrease in inventories in 2016 , which is primarily related to lower inventory in our fuel specialties business partly offset by increased inventory from the higher production volumes in our octane additives segment .


 Write a concise suspicious activity report of the following text delimited by triple backquotes. Return your response as a formal report which covers the key points highlighting the location,dates,entity names and account holder information in chronological order of the text.
     ```liquidity and financial condition working capital the company believes that adjusted working capital , a non-gaap financial measure , provides useful information to investors in evaluating the company 's underlying performance and identifying operating trends . management uses this non-gaap financial measure internally to allocate resources and evaluate the performance of the company 's operations . items excluded from the adjusted working capital calculation are listed in the table below and represent factors which do not fluctuate in line with the day to day working capital needs of the business . replace_table_token_20_th in 2016 our working capital increased by $ 5.4 million driven by the acquisition of huntsman together with various movements year on year , some of which are included in the 40 reconciliation above to adjust our working capital to better represent the operational activity of the company . adjusted working capital shown above has increased by $ 13.4 million , with $ 12.2 million being related to the acquisition of huntsman . excluding the acquisition our adjusted working capital increased by $ 1.2 million , being primarily driven by higher receivables as the company ended the year with high demand from customers , partly offset by lower inventories year on year . excluding the huntsman acquisition , we had a $ 6.0 million increase in trade and other accounts receivable in 2016 primarily in our oilfield services segment . days ' sales outstanding in our fuel specialties segment decreased from 47 days to 45 days ; increased from 43 days to 55 days in our performance chemicals segment ; and increased from 44 days to 54 in our oilfield services segment . excluding the huntsman acquisition , we had a $ 7.3 million decrease in inventories in 2016 , which is primarily related to lower inventory in our fuel specialties business partly offset by increased inventory from the higher production volumes in our octane additives segment .
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 Suspicious Activity Report : the united kingdom plan is closed to future service accrual , but has a large number of deferred and current pensioners . movements in the underlying plan asset value and projected benefit obligation ( pbo ) are dependent on actual return on investments as well as our assumptions in respect of the discount rate , annual member mortality rates , future return on assets and future inflation . a change in any one of these assumptions could impact the plan asset value , pbo and pension charge recognized in the income statement . such changes could adversely impact our results of operations and financial position . for example , a 0.25 % change in the discount rate assumption would change the pbo by approximately $ 26 million while the net pension credit for 2017 would change by approximately $ 0.2 million . a 0.25 % change in the level of price inflation assumption would change the pbo by approximately $ 19 million and the net pension credit for 2017 would change by approximately $ 0.2 million . further information is provided in note 9 of the notes to the consolidated financial statements . 26 deferred tax and uncertain income tax positions as at december 31 , 2016 , no deferred taxes have been provided for on the unremitted earnings of our overseas subsidiaries as any tax basis differences relating to investments in these overseas subsidiaries are considered to be permanent in duration . we have no current intention to repatriate past or future earnings of our overseas subsidiaries and consider that these earnings have been reinvested overseas . if circumstances were to change that would cause these earnings to be repatriated an additional u.s. tax liability could be incurred , and we continue to monitor this position . the calculation of our tax liabilities involves evaluating uncertainties in the application of complex tax regulations . we recognize liabilities for anticipated tax audit issues based on our estimate of whether , and the extent to which , additional taxes will be required . if we ultimately determine that payment of these amounts is unnecessary , we reverse the liability and recognize a tax benefit during the period in which we determine that the liability is no longer necessary . we also recognize tax benefits to the extent that it is more likely than not that our positions will be sustained , based on technical merits , when challenged by the taxing authorities . to the extent that we prevail in matters for which liabilities have been established , or are required to pay amounts in excess of our liabilities , our effective tax rate in a given period may be materially affected . an unfavorable tax settlement may require cash payments and result in an increase in our effective tax rate in the year of resolution . a favorable tax settlement may be recognized as a reduction in our effective tax rate in the year of resolution . we report interest and penalties related to uncertain income tax positions as income taxes . for additional information regarding uncertain income tax positions , see note 10 of the notes to the consolidated financial statements . goodwill the company 's reporting units , the level at which goodwill is assessed for potential impairment , are consistent with the reportable segments . the components in each segment ( including products , markets and competitors ) have similar economic characteristics and the segments , therefore , reflect the lowest level at which operations and cash flows can be sufficiently distinguished , operationally and for financial reporting purposes , from the rest of the company . initially the company performs a qualitative assessment to determine whether it is more likely than not that the fair value of a segment is less than the carrying amount prior to performing the two-step goodwill impairment test . if a two-step test is required we assess the fair value based on projected post-tax cash flows discounted at the company 's weighted average cost of capital . at december 31 , 2016 we had $ 374.8 million of goodwill relating to our fuel specialties , performance chemicals and oilfield services segments . our impairment assessment concluded that there had been no impairment of goodwill in respect of those reporting segments . 27 while we believe our assumptions for impairment assessments are reasonable , they are subjective judgments , and it is possible that variations in any of the assumptions may result in materially different calculations of any potential impairment charges . property , plant and equipment and other intangible assets ( net of depreciation and amortization , respectively ) as at december 31 , 2016 we had $ 157.4 million of property , plant and equipment and $ 144.4 million of other intangible assets ( net of depreciation and amortization , respectively ) , that are discussed in notes 6 and 8 of the notes to the consolidated financial statements , respectively . these long-lived assets relate to all of our reporting segments and are being amortized or depreciated straight-line over periods of up to 17 years in respect of the other intangible assets and up to 25 years in respect of the property , plant and equipment . we continually assess the markets and products related to these long-lived assets , as well as their specific carrying values , and have concluded that these carrying values , and amortization and depreciation periods , remain appropriate . we also test these long-lived assets for any potential impairment when events occur or circumstances change which suggests that impairment may have occurred . story_separator_special_tag octane additives net sales : the year on year increase of $ 4.3 million was primarily due to the timing of demand with our one remaining refinery customer . gross margin : the year on year decrease of 3.9 percentage points is primarily driven by the timing and efficiency of production for our one remaining refinery customer . operating expenses : the year on year decrease of $ 2.2 million was due to the continuing efficient management of the cost base . other income statement captions pension credit/ ( charge ) : is non-cash , and was a $ 0.2 million net credit in 2015 compared to $ 3.3 million net charge in 2014 , primarily driven by lower interest cost on the projected benefit obligation . corporate costs : the year on year decrease of $ 0.4 million , related to $ 1.1 million lower legal , professional and other expenses in 2015 driven by the recovery of legal fees ; $ 1.8 million non-recurring professional costs in 2014 related to the acquisition of our independence business ; $ 1.4 million lower insurance claims due to non-recurring charges in 2014 relating to self-insured incidents ; which were partly offset by $ 3.1 million higher personnel-related compensation , including higher accruals for share-based compensation ; and the net $ 0.8 million release of a severance provision in 2014 . 37 adjustment to fair value of contingent consideration : the credit of $ 40.7 million relates to an adjustment of the carrying value of our liability for contingent consideration related to our independence acquisition of $ 51.4 million , partly offset by the accretion charge of $ 10.7 million . the carrying value of the contingent consideration is based on the estimated ebitda and free cash flow generated by the independence business through the period to october 31 , 2016. the contingent consideration payable is based on management 's latest forecasts of the business and on the current trading performance . the results of the business are particularly sensitive to the level of exploration , development and production activity of our customers in the oil and gas sector , this is directly affected by trends in oil prices . profit on disposal of subsidiary : the disposal of our aroma chemicals business generated a profit on disposal of $ 1.6 million in the third quarter . other net income/ ( expense ) : other net expense of $ 0.0 million primarily related to $ 1.4 million of losses on translation of net assets denominated in non-functional currencies in our european businesses , offset by gains of $ 1.4 million on foreign currency forward exchange contracts . in 2014 , other net income of $ 1.8 million primarily related to net gains of $ 3.4 million on foreign currency forward exchange contracts , partly offset by $ 1.6 million of losses on translation of net assets denominated in non-functional currencies in our european businesses . interest expense , net : was $ 4.0 million in 2015 and $ 3.4 million in 2014 , being primarily driven by higher borrowing in 2015 resulting from the funding required for the acquisition of our independence business in the fourth quarter of 2014. income taxes : the effective tax rate was 21.5 % and 24.2 % in 2015 and 2014 , respectively . the effective tax rate , as adjusted for changes to the fair value of contingent consideration , adjustments to income tax positions and the tax impact of other discrete items , was 20.1 % in 2015 compared with 24.9 % in 2014. the company believes that this adjusted effective tax rate , a non-gaap financial measure , provides useful information to investors and may assist them in evaluating the company 's underlying performance and identifying operating trends . in addition , management uses this non-gaap financial measure internally to evaluate the performance of the company 's operations and for planning and forecasting in subsequent periods . 38 replace_table_token_18_th in addition to those mentioned above , the following factors had a significant impact on the company 's effective tax rate as compared to the u.s. federal income tax rate of 35 % : replace_table_token_19_th the impact on the effective tax rate from profits earned in foreign jurisdictions with lower tax rates varies as the geographical mix of the company 's profits changes year on year . in 2015 , the company 's income tax expense benefited to a lesser degree from a proportion of its overall profits arising in switzerland than in 2014. this resulted in a $ 7.5 million benefit in switzerland ( 2014  $ 9.4 million ) . in addition , there was a $ 6.8 million benefit in relation to the united kingdom ( 2014  $ 7.9 million ) and a $ 0.3 million benefit in relation to germany ( 2014  $ 0.4 million ) , offset by a $ 0.1 million reduction in other jurisdictions . foreign income inclusions arise each year from certain types of income earned overseas being taxable under u.s. tax regulations . these types of income include subpart f income , principally from foreign based company sales in the united kingdom , including the associated section 78 tax gross up , and also from the income earned by certain overseas subsidiaries taxable under the u.s. tax regime . in 2015 , subpart f income and the associated section 78 gross up resulted in u.s. taxation of $ 4.7 million ( 2014  $ 5.0 million ) . certain overseas subsidiaries taxable under the u.s. tax regime incurred losses of $ 0.2 million ( 2014  $ 2.1 million income ) . foreign tax credits can fully or partially offset these incremental u.s. taxes from foreign income inclusions . the utilization of foreign tax credits varies year on year as this is dependent on a number of variable factors which are difficult to predict and may in certain 39 years prevent any offset of

