COMMUNIST CHINA: PERFORMANCE AND PROSPECTS IN THE COAL INDUSTRY

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CIA-RDP85T00875R001700010010-8
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January 28, 2010
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April 1, 1971
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Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 25X1 Secret DIRECTORATE OF INTELLIGENCE Intelligence Memorandum Communist China: Performance And Prospects In The Coal Industry 38 Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 WARNING This document contains information affecting the national defense of the United States, within the meaning of Title 18, sections 793 and 794, of the US Code, as amended. Its transmission or revelation of its contents to or re- ceipt by an unauthorized person is prohibited by law. GROUP I Erdud,d from aulommk downgtod{ng and dndmlIGco lon Sanitized Copy Approved for Release 2010/02/02: CIA-RDP85T00875R001700010010-8 Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 SECRET CENTRAL INTELLIGENCE AGENCY Directorate of Intelligence April 1971 SECRET Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 Communist China: Performance And Prospects In The Coal Industry Introduction 1. Coal remains the single most important energy source in Communist China, comprising 90% of all the energy available in 1970. As demonstrated during the Cultural Revolution in 1967-68, disruptions in the production and distribution of coal can lead to reduced production in such key industries as electric power, iron and steel, chemicals, and petroleum re- fining. Although the petroleum industry is vigor- ously expanding and although hydroelectric stations are multiplying, coal will continue to play a dom- inant role in Chinese industrial development through- out the 1970s. 2. This memorandum reviews recent developments in the Chinese coal industry and assesses the pros- pects for the industry during the period of the new Fourth Five-Year Plan (1971-75). The memorandum distinguishes between (a) the small local mines, generally located in areas of thin coal deposits, which are favored under current economic policy, and (b) the large mining complexes, generally located in the coal-rich industrial provinces of the north, which often rely on foreign equipment and which have a long lead time from the start of construction to actual operation. The Appendix reviews the problem of estimating coal output from the available frag- mentary data. Note: This memorandum was prepared by the Office of Economic Research. 25X1 Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 SECRET Discussion Million 'Motric Tone Production 3. In 1970, Communist China's coal production regained the previous 1959 peak of 300 mmillion metric tons. After a sharp decline in 1967-68 caused by the upheavals of the Cultural Revolution, coal production in 1969 increased by 50 million tons over the level of 1968* and by a further, 50 million tons in 1970 (see Figure 1). 1830 !200 190 19871958 1969 1960,1981 011 11904' 1988 1968`;.1967?. 1968 ', 1989:,' 1970 25X1 SECRET Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 SECRET 4. China's coal industry covers a wide spec- trum of facilities ranging from small, labor- intensive mines (Figures 2 and 3) to large, highly mechanized mines (Figures 4 and 5). In their discussions, the Chinese generally refer to two categories of mines -- small and large. In most cases, a small mine is little more than a small open pit, or a shaft, producing less than 1,000 tons of coal a year. However, a few "small" mines may produce as much as 60,000 to 70,000 tons., Large mines, which usually include multiple shafts, produce over 300,000 tons per year. Sometimes the Chinese refer to mines of "medium size." This term can be used to describe mines in the range of 100,000 to 300,000 tons, which frequently are developed into large mines. "Medium" is also used to describe sizable small mines. Since the term is ambiguous, and since mines in China are mostly either small or large, use of the term "medium" is avoided in this memorandum. 5. Mining bureaus, generally consisting of several mines, are classified as large if they produce over 1 million tons a year. These bureaus are located for the most part in the coal-rich northeast which has had years of development. Some large bureaus are also found in east China and around the Shensi and Szechwan Basins. In 1970, large mining bureaus accounted for about 76% of total coal production, with small mines probably accounting for most of the remaining 24%. 6. The large mining bureaus under which the major mines are grouped have been producing at less than capacity since 1961. The bulk of the increase in coal production in 1970-71 has come from more efficient mining procedures and fuller exploitation of coal deposits at the large mining bureaus. Even though the large mining bureaus were producing at less than capacity during the middle 1960s, several dozen new large mines were built as the result of regime policies emphasizing large-scale mine construction. Output from these new mines, which are now coming into full produc- tion, was also a significant component of total coal production in 1970. The current Chinese interest in rejuvenating some of the old worked- out mines, previously closed, suggests that 3 - SECRET Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 SECRET Figure 3. Small Strip Mine County, Chekiang Province SECRET n Yi-wu Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 SECRET Figure 4. Large Underground Mine In Peking, Hopeh Figure 5. Large Strip Mine In Fu-shun, Liaoning Province SECRET Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 SECRET production is now pushing capacity. Most of the coal so far obtained from these old mines has been gained by picking over partly worked faces through labor-intensive methods; in other cases, new coal seams have been discovered and exploited. 7. Several longstanding problems continued to plague the industry in 1970. The lack of timber for pit props, equipment breakdowns, and backlogged coal at mines caused by limited transport facil- ities are the most common reasons for production slowdowns. The Chinese are trying to solve these problems through innovation. Steel and sometimes concrete are being substituted for wood pit props. Tool shops and foundries are being built on mine sites to manufacture replacements for wornout machinery and equipment. More attention is being given to the minimizing the distances between mines and consumers. 8. In any case, increases in output of the magnitude achieved in the past two years almost certainly will not be repeated within the next few years. As indicated in the following sections of this memorandum, there are grounds for believing that output at the large mines -- which account for most of Chinese production -- is now pressing the limits of capacity. Development Policy 9. Over the years, policy emphasis on the development of the coal industry has alternated between small and large mines. Following the failure of the Great Leap Forward, which had featured the opening of thousands of small primi- tive mines, China once more emphasized the develop- ment of modern mining complexes. These modern com- plexes usually required foreign equipment and technology, which, now that Soviet support was unavailable, had to be obtained elsewhere. During the early 1960s, therefore, China purchased small amounts of modern mining equipment from Britain, France, West Germany, Romania, Sweden, and Japan. The Chinese appear to have mainly used this im- ported equipment as the basis for developing the domestic mining machinery industry. These imports halted in 1966 with the outbreak of the Cultural Revolution. The political turmoil of the Cultural - 6 SECRET Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 SECRET Revolution slowed down -- but did not completely stop -- the development of capacity and technology in the industry. 10. With the waning of the Cultural Revolution in 1969, the Communists began to expand the use of small mines. Small mines are found throughout China, but they are most prevalent in the southern provinces where reserves of both anthracite and bituminous coal are less plentiful and of lower quality.* By early 1969, both provincial and na- tional press media began reporting the construction and opening of numerous small coal mines throughout China. This marked a definite policy change from the preceding eight years. To meet immediate needs for greater quantities of coal, the Chinese have since appeared to be more intensively exploiting the existing large mines and building small mines. Increases in the reported number of small mines sometimes are quite high. For example, in Chekiang Province during 1970, 800 small. coal mines were opened in four counties within a six-month period. Much of this "new" small-mine construction is simply the reopening of mines that were abandoned after the collapse of the Great Leap Forward. 11. Those communes or production brigades which build new small mines need little in the way of heavy initial infusions of capital, but they do profit from the-technical assistance from workers and technicians sent from the large mining bureaus. Small mines are usually financed and ~iministrated by counties, communes, or production brigades, and regulated by provincial authorities who provide inspection teams to evaluate construc- tion methods and cut costs. 12. The particular advantages of small coal pits are their low capital requirements, speed of construction, and low use of transport. Neverthe- less, the rate of production from r,tany of these small pits falls rapidly after two or three years as supplies of coal at shallow depths are exhausted. * For data on the dominance of the northern coaZ- producing provinces, notably, Shansi, Hopeh, Shan- tung, Liaoning, and HeiZungkiang, see the Appendix, Table 2. SECRET Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 SECRET At this point the operators face a choice between shutting down or obtaining the mechanical equip- ment needed for continuing operations at greater depths. Thus the future of many of these coal mines will depend upon the ability of the communes or production brigades to finance the costs of such equipment and their calculation of the benefits which could accrue from such outlays. In a more industrialized economy such mining ventures prob- ably would not be undertaken, because operating costs tend to be high and the quality of the coal tends to be low. In China, the labor cost of the ventures is minuscule because of the low opportunity costs for labor. The transport costs also will be low if the mines are being developed in coordination with small local industrial plants. 13. Small mines usually take one year or less to design, build, and put into production. Large mines normally take about four years to build. The large mines currently coming into production have taken six or seven years to complete because of the work stoppages during the Cultural Revolu- tion. As_ndicated in Table 1, ten large mines with a total capacity of at least 4.25 million tons were completed in 1969. Nine have been re- ported completed in 1970, but the total capacity of large mines added in 1970 appears to have been less than in the previous year. Thus the rateat which new large mines are being opened may be slowing down. The Chinese claim that more mines were completed during the first eight months of 1970 than in all of 1969 seems to reflect the current emphasis upon small-mine development. More important, the additions to large-mine capacity equal only about 1% of total production; even a modest industrialization program would require greater additions to capacity. 14. Construction and modernization of large mines, which are still referred to as "the back- bone of the coal industry," is not being abandoned by the regime. However, since the Cultural Revolu- tion the Chinese have not been reporting new mines until their completion. Therefore: it is difficult to estimate how many starts have been made on new large mines. Modernization is continuing in some cases, with foreign assistance. Poland is presently 8 - SECRET Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 Table 1 Communist China: Newly Constructed Large Mines Anhwei Hopeh Hupeh Inner. Mongolian Huai-pei K' ai-luan Unknown Autonomous Republic Unknown Kansu Yao-chieh Kiangsi Unknown Kiangsu Unknown Kiangsu Unknown Kirin Unknown Liaoning Chieh-fa EMNEREffEm Sanitized Copy Approved for Release Capacity (Thousand Metric Tons) Huai-pei 1,000 Tang-shan Sheng-li Hai-tai-shan 1,000 "Large " "Large" Unknown 900 Tung-shan No. 1 "Large" cn Chung-shan 300 C) Unknown 450 Yen-pien "Large" C=J Hsiao-wing 600 4, 2501 Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 Communist China: Table 1 Ne;ily Constructed Large Mines (Continued) Capacity (Thousand Metric Tons) Honan Ping-ting-shan No. 6 900 Hopeh Unknown Cheng-feng 310 Hopeh Unknown Unknown 500 Inner Mongolian Cn Autonomous Republic Kirin Wu-ta Liao-yuan Wu-hu-shan Unknown "Large" 450 Peking Peking Ching-hsing Ching-hsing Chia-chuang No. 1 "Large " 650 Shensi Unknown Nan-k'ou 250 Sinkiang Ha-mi. Unknown "Large" 3,060+ Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 SECRET helping China build coal-washing plants and is supplying drilling machines and other equipment. 15. Although similarities exist between current policies toward the coal, industry and those of the Great Leap Forward era, the regime has undertaken more careful planning {'or the allocation of human and material resources within the coal industry. For example, the abandoned workings of small mines started during the Leap Forward frequently caused difficulty in the subsequent development of larger modern mines. Now the Chinese are trying to limit now small-mine construction to the areas where coal seams are thin and are apparently reserving the large coal seams fo--, large-scale development. In 1958-59, most of these small mines were worked by peasants; this contributed to labor shortages which adversely affected the planting and harvest- ing of grain. Currently, local authorities are tasked with monitoring the man-hours spent in the small coal mines. When the communes or production brigades begin to neglect their primary duty of farming by spending too much time in coal mining, county or provincial authorities redirect them to the primary task of farming. Consumption 16. From 50% to 60% of China's coal output -- chiefly that portion produced by the large mining bureaus -- is allocated to industrial uses, in- cluding the generation of electric power. About 75% of the elect;-ic.ty generated in China comes from thermal powerplants fueled by coal. The metallurgical industries also consume large quan- tities of coal, and most other industries depend on coal either as a raw material or as a fuel to provide steam for heat processing. Between 10% and 15% of China's coal output is consumed by the transportation sector, principally by the railroads. More than 90% of the locomotives used on Chinese railroads are steam-driven. Although diesel loco- motives are being produced in increasing quantities, coal will remain the most important source of fuel for the railroads for many years. The household sector together with local handicraft industry uses roughly 30% of total coal output. - 11 - SECRET Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 SECRET 3.7. The development of small mines dovetails with the current policy of building upsmall,indus- trial facilities in outlying cities and towns. The various local producers of iron and steel, machinery, fertilizer, cement, paper, and br'ck all use .-oal as a source of heat and power. in the case o~.' local fertilizer-plants, coal is used also as a raw material. The bulk of coal produced from small mines is consumed by this expanding "local indus- try. 18. At present, China has a shortage of coal, although it is not critical. The shortage is mostly felt in the household sector since indus- trial needs are served first. Comp],a.nts about shortages are more numerous from coal-deficient provinces in the south than from the major coal producing provinces of the north. "Self- sufficiency" and "stop transporting coal from the north to the south" are phrases often repeated in .southern provincial radio broadcasts. 19. The nationwide drive to conserve coal has led to campaigns for technological improvement within various consumer industries. For example, in the fertilizer industry a new coal powder gasi- fication oven was developed in 1970 for the pro- duction, of synthetic ammonia. This oven uses 1 ton of coal to produce 1 ton of synthetic ammonia,-whereas.older ovens use l/ tons of coal. The gasifter is of such simple construction and low cost that chemical fertilizer plants at the county and commune level can easily change over to its use. In other industrial plants, particularly those in southern areas where coking grade coal is scarce, anthracite coal briquettes have been used to cut down on the amounts of coke consumed. More generally, boilers at many electric powerplants and other industrial installations have been ren- ovated in order to reduce coal consumption. 20. In the winter of 1970-71 the regime devoted an usual effort to its fuel conservation campaign. In December 1970 the office in charge of "ware- house inventory and practicing economy" of the State Planning Commission held a joint meeting in Hopeh with the Ministry of Commerce "to exchange experiences in conserving coal and firewood." All of the provinces and autonomous regions in - 12 - SECRET Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 SECRET China were represented. The express purpose of the meeting was to educate the household sector in the significance of conserving coal and fire- wood through the use of improved cookstoves. Towns and cities located in coal producing areas were also admonished to use low-grade coal in the household and leave the high-grade coal for indus- try. The campaign appears to have succeeded; shortages were mild during the winter. The regime seems to be indicating to its people that coal for households is likely to remain in short supply for some time to come.` 21. Communist China exports less than 1% of its annual coal production. China exports coking coal, to North Korea and North Vietnam, although little coal has gone to North Vietnam for the past two yeinrs because North Vietnamese steel produc- tion has been halted by the war. China exports anthracite coal to Pakistan and Japan, with small amounts also going to Cambodia, Hong Kong, and Malaysia. Chinese credits for coal have been of importance to Pakistan since 1065 when Pakistan banned coal imports from India. Coking coal ex- ports to Japan, which were stopped in 1968, may again he resumed. 22. Communist China imports c,: gal from only one country -- anth-acite coal from North Vietnam. This trade is advantageous for North Vietnam be- cause it helps to alleviate the unfavorable balance of trade with China, and it is advantageous for China because the coal goes to the deficit areas south of the Yangtze River, thereby saving on transportation costs incurred in shipping coal from north China. Prospects 23. With proven coal reserves of between 70 billion and 80 billion tons and with a huge, in- dustrious labor force, Communist China would not seem to face serious; problems in meeting its future needs for coal. The regime, however, cannot readily 25X1 SECRET Sanitized Copy Approved for Release 2010/02/02: CIA-RDP85T00875R001700010010-8 Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 SECRET eliminate the general tightness which now marks coal supply in China and, over the next five years, may periodically encounter difficulties in pro- viding increased amounts of coal for use in the modern industrial sector. The specific goals of the new Fourth Five-Year Plan (1971-75) remain un- known; nevertheless, the regime almost certainly expects to achieve sizable increases by 1975 in the production of electric power, iron and steel, chemicals, nonferrous metals, and industrial ma- chinery and equipment. Coal production is now at peak levels in China, Most of the high-quality coal required to support increased levels of in- dustr.i 1 production will have to come from new large mines or further expansion of the existing mines. Present Chinese policy toward the coal industry apparently does not place high priority on large-mine development. Given a construction time of four years for bringing large mines into production, some change in policy -- perhaps in- cluding increased imports of foreign technology and equipment -- would seem to be required fairly soon. 24. The small-mine construction program will contribute little to the flow of coal needed for the expansion of modern industrial production. However, there are virtues in the program -- in particular, in its contribution to the program of small-plant industrialization currently under way in China. Furthermore, the small mines may even- tually provide a means of alleviating the tightness which marks the supply of coal for the household sector. Produced from local deposits of coal with local lar,or power and intended for consumption by local industry, the output of the small mines minimizes the requirements for coal which otherwise could have to come from China's large mines. The regime appears to be carefully controlling the scope and pace of its small-plant industrialization program and attempting to insure that the coal re- quirements of these small, plants do not exceed the capabilities of small-mine coal production. Thus the lessons of the Lop Forward era -- when small industrial plants became additional claimants on the supplies of coal normally intended for modern industrial use -- appear to have been taken into account in regime planning. - 14 - SECRET Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 SECRET 25. The problems of the coal industry in the next five years are thus the product of Chinese ambitions to speed up industrial development, now that the economy has settled back to regularized economic planning. They are largely problems of providing a sensible and orderly balance among supplies of fuels, raw materials, intermediate products, and finished goods. The care and planning that distinguishes current Chinese decisions on new industrial construction from those of the Leap Forward era suggests that the regime will make the necessary adjustments. Squeezes will be nonetheless inevitable and will hit the house- hold sector hardest as expected under Communist- style planning. Conclusions 26. Coal production in Communist China reached 300 million tons in 1970, regaining the previous peak level of 1959. Production from large mines, which operated at less-than-capacity levels in the late 1960s, was responsible for approximately 75% of output in 1970, with output from small mines accounting for the remainder. Production at the large mines is now pressing capacity, and increases in total output of the magnitude achieved in the past two years almost certainly will not be re- peated within the next few years. 27. The current policy of the regime emphasizes the construction of small local mines using labor- intensive methods of coal extraction. This policy takes advantage of widespread coal deposits and China's abundant labor power. A similar policy during the Leap Forward created havoc in the in- dustry, but the current policies are being more carefully planned and controlled in implementation and seem more likely to succeed. Coal from these small mines supports the operation of the hundreds of small factories which have proliferated under the regime's small-plant industrialization policies. Coal from the large mines, generally of higher quality, is chiefly consumed by modern industry and transportation. - 1-5 - SE'CR r Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 SECRET 28. Despite its huge reserves of coal, China could face problems in providing the coal required for industrial expansion during the now Fourth Five-Year Plan (1971-75). Current expansion of the industry is heavily oriented toward the develop- ment of small mines whose output will support the growing number of small local industrial plants. However, if the regime is to provide the increased amounts of coal needed in the modern industrial sector, it must also give more attention to the construction of and expansion of capacity at largo modern mines. Those mines involve a lead time of four years and there is little evidence so far that the regime in facing up to this part of the coal problem. - 16 .. SECR117 Sanitized Copy Approved for Release 2010/02/02: CIA-RDP85T00875R001700010010-8 Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 Coal Production 1ntimato L 1066 an 1560-76 Chinese Communint claims for coal production usually are in terms of percentage incroanori for the country an a whole or for various provinces. Absolute figures are extremely rare. The last figure for national output -- 190 million tons -- wan given for lb67 Pro- 25X1 vincial figures are - ae pr. mary source of production estimates in thin memorandum, while national data are used mainly an a cross-check. 'these reported incroanen are applied to previous figuron to derive estimates. In caner where no percentage in given, there often in the ntatoment that the "production plan" "team completed. In thin case it in assumed that the plan was ant at leant an high an the previous year and probably a few points higher. If the plan is reported an com- pleted early, then further production in extra- polated from the time of completion to the and of the year. Thin extrapolation in modified when equipment breakdowns or other advorne factors are reported. In canon where no nubutantivo_ etate- t ent are given for the province an a whole, pro- duction has been ar.numed to have increancd very little it at all during that year. Production increase n reported for various r mining bureaus and individual minen in those canoe worn examined to estimate the Output. in the tare cases Where no rep to on a province it g mince have been =tivon, it in eat fnnt'e4 that no increnne :.n production war; ,a htev rd. 7h' .'.tare gate are u :u.all, rnntr'i.cted to lcti~-proth,.ci..,tt p rc vinc.e and ; ;skc littI- d .z~ r- once in ~.iae *.''da7tiill to i l . ?w Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 Sanitized Copy Approved for Release 2010/02/02 : CIA-RDP85T00875R001700010010-8 Communit t China: Eritimatod Coal Production by Provinco and Autonomourn iiogion Million Matric 'font; 1970 Incroano Ovor 1969 1966 1969 1970 (i'orcont) Anhw(-,i 2 13.7 14.7 17.5 19 Chekiang 0.2 0.2 0.7 250 Fukion b / 0.4 0.4 0.7 75 Iloilune3. ianr3 22.0 24.3 27.7 14 Ronan 17.9 19.4 23.0 19 Iiopeh an d Peking 20.4 30.6 34.0 11 Ilun tin b 3.0 3.4 5.2 53 liupo 1.0 1.0 3.6 100 Inner rso Autronom ngolian ? auti legion 4.5 7.0 7.5 7 Kanau an d I'lingnia 4.6 5.1 7.1 39 Kiang;i b/ 5.6 5.7 7.0 23 K1angcu 2.0 2.7 3.6 33 Ki.ri 9 10.3 10.0 12.4 24 Kwan~ 11 2.2 2.0 2.4 20 Kwangtun` J I / 2.2 1.9 3.0 100 Kwc icliow 4.7 6.2 6.6 6 Liaoning 36.6 39.0 51.1 20 Shan i 35.7 331 2 34.9 5 .3h,-ntunI 14.4 19.5 30 . t3 5O h jft~ n: 1 6.0 4.3 4.4 2 =1n, 1Rn 1.8 1.7 ~.0 10 + `~3 I1 S4*:~n y + 12.0 J r0 9.1 1 0.0" Tv-i ighal 1.9 2.2 ww4 9 'U #1 6.6 f:.0 9.7 21 yys . 5 w?? r ~=: y - yu di TO A 5 X43 'z +i